NFL Player Index - O (1920-2023) |
| Player | College | Years | First | Last | GP | GS |
|---|---|---|---|---|---|---|
| Don Oakes | Virginia Tech | 8 | 1961 | 1968 | 104 | 76 |
| Anthony Oakley | Indiana; Western Kentucky | 1 | 2007 | 2007 | 3 | 0 |
| Charley Oakley | Louisiana State | 1 | 1954 | 1954 | 1 | 0 |
| Ben Oas | St. Mary's (Minnesota) | 1 | 1929 | 1929 | 7 | 4 |
| Bart Oates | Brigham Young | 11 | 1985 | 1995 | 172 | 165 |
| Brad Oates | Duke; Brigham Young | 8 | 1976 | 1981 | 67 | 23 |
| Victor Oatis | Northwestern State (Louisiana) | 1 | 1983 | 1983 | 9 | 0 |
| Carleton Oats | Florida A&M | 9 | 1965 | 1973 | 111 | 52 |
| Efe Obada | none | 7 | 2018 | 2024 | 81 | 2 |
| Ronnie O'Bard | Idaho; Grossmont JC; Brigham Young | 1 | 1985 | 1985 | 16 | 0 |
| Vic Obeck | Springfield | 2 | 1945 | 1946 | 22 | 3 |
| Dunc Obee | Dayton | 1 | 1941 | 1941 | 3 | 0 |
| Terry Obee | Oregon | 2 | 1991 | 1993 | 17 | 5 |
| Roman Oben | Louisville | 12 | 1996 | 2007 | 143 | 130 |
| Ray Oberbroekling | Loras | 1 | 1924 | 1924 | 1 | 0 |
| Tom Oberg | Oregon State; Portland State | 2 | 1968 | 1969 | 16 | 13 |
| Herman O'Berry | Oregon | 1 | 1996 | 1996 | 9 | 0 |
| Cyril Obiozor | Texas A&M | 3 | 2009 | 2010 | 8 | 0 |
| Ben Obomanu | Auburn | 6 | 2007 | 2013 | 69 | 13 |
| Harry O'Boyle | Notre Dame | 3 | 1928 | 1933 | 24 | 14 |
| Ed O'Bradovich | Illinois | 10 | 1962 | 1971 | 124 | 90 |
| Jim Obradovich | El Camino JC; Southern California | 9 | 1975 | 1983 | 129 | 23 |
| Bill O'Brien | none | 1 | 1947 | 1947 | 9 | 2 |
| Con O'Brien | Boston College | 2 | 1921 | 1926 | 4 | 4 |
| Dave O'Brien | Boston College | 5 | 1963 | 1967 | 60 | 5 |
| Davey O'Brien | Texas Christian | 2 | 1939 | 1940 | 22 | 19 |
| Fran O'Brien | Michigan State | 11 | 1959 | 1968 | 126 | 102 |
| Gail O'Brien | Nebraska | 3 | 1934 | 1936 | 31 | 20 |
| Jack O'Brien | Minnesota | 1 | 1929 | 1929 | 1 | 1 |
| Jack O'Brien | Florida | 3 | 1954 | 1956 | 31 | 7 |
| Jim O'Brien | Cincinnati | 4 | 1970 | 1973 | 52 | 8 |
| Ken O'Brien | Sacramento State; UC Davis | 10 | 1984 | 1993 | 129 | 110 |
| Mike O'Brien | Olympic JC; California | 1 | 1979 | 1979 | 3 | 0 |
| Mike Obrovac | Bowling Green State | 3 | 1981 | 1983 | 25 | 2 |
| Henry Obst | Syracuse | 2 | 1931 | 1933 | 3 | 2 |
| John O'Callaghan | San Diego State; Golden West JC; San Diego State; Long Beach State | 1 | 1987 | 1987 | 1 | 0 |
| Ryan O'Callaghan | California | 4 | 2006 | 2010 | 51 | 20 |
| Victor Ochi | Stony Brook | 1 | 2016 | 2016 | 2 | 0 |
| Aidan O'Connell | Purdue | 2 | 2023 | 2024 | 20 | 18 |
| Grattan O'Connell | Boston College | 2 | 1926 | 1927 | 12 | 12 |
| Jake O'Connell | Miami (Ohio) | 4 | 2009 | 2012 | 35 | 8 |
| Kevin O'Connell | San Diego State | 1 | 2008 | 2008 | 2 | 0 |
| Milt O'Connell | Lafayette | 2 | 1924 | 1925 | 13 | 9 |
| Patrick O'Connell | Mary; Montana | 2 | 2023 | 2024 | 6 | 0 |
| Tommy O'Connell | Notre Dame; Illinois | 5 | 1953 | 1961 | 45 | 24 |
| Bill O'Connor | Notre Dame | 3 | 1948 | 1951 | 37 | 12 |
| Bob O'Connor | Stanford | 1 | 1935 | 1935 | 7 | 2 |
| Dan O'Connor | Boston College; Georgetown (DC) | 2 | 1920 | 1921 | 11 | 9 |
| Frank O'Connor | Holy Cross | 1 | 1926 | 1926 | 2 | 0 |
| Pat O'Connor | Eastern Michigan | 7 | 2017 | 2024 | 80 | 0 |
| Paul O'Connor | Miami (Florida) | 1 | 1987 | 1987 | 2 | 2 |
| Red O'Connor | DePaul | 4 | 1920 | 1924 | 16 | 11 |
| Tom O'Connor | Nassau CC; South Carolina | 1 | 1987 | 1987 | 3 | 0 |
| Steve Octavien | Harper JC; Nebraska | 3 | 2008 | 2010 | 18 | 0 |
| Dorian O'Daniel | Clemson | 4 | 2018 | 2021 | 58 | 1 |
| Don Odegard | Oregon State; Nevada-Las Vegas | 2 | 1990 | 1991 | 30 | 1 |
| Stu O'Dell | Indiana | 4 | 1974 | 1978 | 39 | 0 |
| Mel Odelli | Duquesne | 1 | 1945 | 1945 | 2 | 0 |
| Curly Oden | Brown | 7 | 1925 | 1932 | 67 | 49 |
| Derrick Oden | Alabama | 3 | 1993 | 1995 | 35 | 0 |
| McDonald Oden | Tennessee State | 3 | 1980 | 1982 | 41 | 0 |
| Ifeadi Odenigbo | Northwestern | 6 | 2018 | 2022 | 55 | 15 |
| Dayo Odeyingbo | Vanderbilt | 4 | 2021 | 2024 | 61 | 19 |
| Rees Odhiambo | Boise State | 3 | 2016 | 2018 | 16 | 7 |
| Osa Odighizuwa | UCLA | 4 | 2021 | 2024 | 67 | 63 |
| Owa Odighizuwa | UCLA | 2 | 2015 | 2016 | 18 | 0 |
| Phil Odle | Brigham Young | 3 | 1968 | 1970 | 31 | 0 |
| Antwan Odom | Alabama | 7 | 2004 | 2010 | 74 | 52 |
| Chris Odom | Arkansas State | 2 | 2017 | 2019 | 11 | 0 |
| Cliff Odom | Texas-Arlington | 13 | 1980 | 1993 | 167 | 104 |
| Henry Odom | South Carolina State | 1 | 1983 | 1983 | 16 | 0 |
| Jason Odom | Florida | 4 | 1996 | 1999 | 46 | 41 |
| Joe Odom | Purdue | 3 | 2003 | 2005 | 28 | 8 |
| Ricky Odom | Southern California | 3 | 1978 | 1979 | 14 | 3 |
| Sammy Odom | Northwestern State (Louisiana) | 1 | 1964 | 1964 | 14 | 8 |
| Steve Odom | Utah | 7 | 1974 | 1979 | 81 | 34 |
| Nate Odomes | Wisconsin | 8 | 1987 | 1996 | 115 | 111 |
| Riley Odoms | Houston | 12 | 1972 | 1983 | 153 | 134 |
| Pat O'Donahue | Wisconsin | 2 | 1952 | 1955 | 22 | 17 |
| Carter O'Donnell | Alberta | 1 | 2023 | 2023 | 5 | 3 |
| Dicky O'Donnell | none | 9 | 1923 | 1931 | 92 | 77 |
| Joe O'Donnell | Michigan | 7 | 1964 | 1971 | 91 | 63 |
| Neil O'Donnell | Maryland | 13 | 1991 | 2003 | 125 | 100 |
| Pat O'Donnell | Cincinnati; Miami (Florida) | 10 | 2014 | 2024 | 153 | 0 |
| Neil O'Donoghue | St. Bernard; Auburn | 9 | 1977 | 1985 | 110 | 0 |
| Jared Odrick | Penn State | 7 | 2010 | 2016 | 87 | 63 |
| Urban Odson | Minnesota | 4 | 1946 | 1949 | 44 | 1 |
| Thomas Odukoya | West Hills JC; Garden City CC; Eastern Michigan | 1 | 2024 | 2024 | 3 | 0 |
| George Odum | Central Arkansas | 7 | 2018 | 2024 | 105 | 12 |
| Rome Odunze | Washington | 1 | 2024 | 2024 | 17 | 15 |
| Matt O'Dwyer | Northwestern | 10 | 1995 | 2004 | 122 | 105 |
| Vern Oech | Montana; Minnesota | 2 | 1936 | 1937 | 9 | 0 |
| Johnny Oehler | Purdue | 4 | 1933 | 1936 | 40 | 34 |
| Arnie Oehlrich | Nebraska | 2 | 1928 | 1929 | 33 | 29 |
| John Oelerich | St. Ambrose | 2 | 1938 | 1938 | 5 | 1 |
| John Offerdahl | Western Michigan | 8 | 1986 | 1993 | 89 | 86 |
| Kendrick Office | West Alabama | 2 | 2001 | 2002 | 18 | 2 |
| Tony Office | Illinois State | 1 | 1987 | 1987 | 3 | 2 |
| Willie Offord | South Carolina | 4 | 2002 | 2005 | 47 | 7 |
| A.J. Ofodile | Missouri | 3 | 1997 | 1999 | 24 | 3 |
| Dave Ogas | San Diego State | 2 | 1968 | 1969 | 20 | 0 |
| Emmanuel Ogbah | Oklahoma State | 9 | 2016 | 2024 | 124 | 87 |
| Eric Ogbogu | Maryland | 7 | 1998 | 2005 | 90 | 3 |
| Amen Ogbongbemiga | Oklahoma State | 4 | 2021 | 2024 | 64 | 2 |
| Chris Ogbonnaya | Texas | 7 | 2009 | 2014 | 53 | 12 |
| Otito Ogbonnia | UCLA | 3 | 2022 | 2024 | 34 | 20 |
| Cedric Ogbuehi | Texas A&M | 9 | 2015 | 2022 | 67 | 35 |
| Jeff Ogden | Eastern Washington | 5 | 1998 | 2002 | 67 | 0 |
| Jonathan Ogden | UCLA | 12 | 1996 | 2007 | 177 | 176 |
| Ray Ogden | Alabama | 8 | 1965 | 1971 | 70 | 23 |
| Kendall Ogle | Maryland | 1 | 1999 | 1999 | 2 | 0 |
| Rick Ogle | Colorado | 2 | 1971 | 1972 | 10 | 5 |
| Alfred Oglesby | Houston | 6 | 1990 | 1995 | 59 | 19 |
| Cedric Oglesby | South Carolina State | 1 | 2001 | 2001 | 3 | 0 |
| Evan Oglesby | North Alabama | 6 | 2005 | 2010 | 38 | 0 |
| Paul Oglesby | Riverside CC; UCLA | 1 | 1960 | 1960 | 14 | 11 |
| Alec Ogletree | Georgia | 9 | 2013 | 2021 | 112 | 111 |
| Andrew Ogletree | Findlay; Youngstown State | 2 | 2023 | 2024 | 29 | 15 |
| Craig Ogletree | Auburn | 1 | 1990 | 1990 | 11 | 0 |
| Kevin Ogletree | Virginia | 7 | 2009 | 2014 | 69 | 4 |
| Pat Ogrin | Wyoming | 2 | 1981 | 1982 | 8 | 0 |
| Dare Ogunbowale | Wisconsin | 8 | 2017 | 2024 | 97 | 9 |
| Adetokunbo Ogundeji | Notre Dame | 3 | 2021 | 2024 | 36 | 28 |
| Larry Ogunjobi | North Carolina-Charlotte | 8 | 2017 | 2024 | 124 | 108 |
| Adewale Ogunleye | Indiana | 10 | 2001 | 2010 | 130 | 119 |
| Ifeanyi Ohalete | Southern California | 5 | 2001 | 2005 | 78 | 50 |
| Ross O'Hanley | Boston College | 6 | 1960 | 1965 | 77 | 77 |
| Shaun O'Hara | Rutgers | 11 | 2000 | 2010 | 151 | 135 |
| Ed O'Hearn | Boston College; Lehigh | 1 | 1921 | 1921 | 2 | 2 |
| Jack O'Hearn | Cornell | 2 | 1920 | 1921 | 6 | 3 |
| Michael Oher | Mississippi | 8 | 2009 | 2016 | 110 | 107 |
| Earl Ohlgren | Minnesota | 1 | 1942 | 1942 | 3 | 2 |
| Ohmer | none | 1 | 1921 | 1921 | 1 | 1 |
| Rich Ohrnberger | Penn State | 5 | 2009 | 2014 | 39 | 12 |
| David Ojabo | Michigan | 3 | 2022 | 2024 | 18 | 1 |
| Michael Ojemudia | Iowa | 4 | 2020 | 2022 | 23 | 12 |
| Quinn Ojinnaka | Syracuse | 7 | 2006 | 2012 | 62 | 20 |
| Adewale Ojomo | Miami (Florida) | 1 | 2012 | 2012 | 1 | 0 |
| Moro Ojomo | Texas | 2 | 2023 | 2024 | 25 | 1 |
| John Ojukwu | Boise State | 2 | 2023 | 2024 | 14 | 7 |
| Azeez Ojulari | Georgia | 4 | 2021 | 2024 | 46 | 30 |
| B.J. Ojulari | Louisiana State | 1 | 2023 | 2023 | 17 | 0 |
| Ty Okada | Montana State | 2 | 2023 | 2024 | 9 | 0 |
| Alex Okafor | Texas | 9 | 2013 | 2021 | 106 | 60 |
| Frank Okam | Texas | 5 | 2008 | 2011 | 25 | 6 |
| Tony Okanlawon | Maryland | 1 | 2003 | 2003 | 1 | 0 |
| Chike Okeafor | Purdue | 10 | 1999 | 2009 | 150 | 111 |
| Bobby Okereke | Stanford | 6 | 2019 | 2024 | 93 | 78 |
| Earl Okine | Florida | 1 | 2015 | 2015 | 5 | 0 |
| Chukky Okobi | Purdue | 7 | 2001 | 2007 | 78 | 7 |
| Steve Okoniewski | Washington; Everett CC; Washington; Montana | 6 | 1972 | 1977 | 52 | 16 |
| Chig Okonkwo | Maryland | 3 | 2022 | 2024 | 51 | 29 |
| Chuks Okorafor | Western Michigan | 7 | 2018 | 2024 | 80 | 60 |
| Obo Okoronkwo | Oklahoma | 6 | 2019 | 2024 | 79 | 13 |
| Kenny Okoro | Wake Forest | 1 | 2014 | 2014 | 2 | 0 |
| Amobi Okoye | Louisville | 6 | 2007 | 2012 | 87 | 59 |
| Christian Okoye | Azusa Pacific | 6 | 1987 | 1992 | 79 | 65 |
| Sam Okuayinonu | Mesabi Range CC; Maryland | 2 | 2022 | 2024 | 22 | 4 |
| Jeff Okudah | Ohio State | 5 | 2020 | 2024 | 44 | 31 |
| Russell Okung | Oklahoma State | 11 | 2010 | 2020 | 131 | 131 |
| Julian Okwara | Notre Dame | 5 | 2020 | 2024 | 51 | 4 |
| Romeo Okwara | Notre Dame | 8 | 2016 | 2023 | 92 | 33 |
| Albert Okwuegbunam | Missouri | 4 | 2020 | 2023 | 29 | 7 |
| Michael Ola | Hampton | 7 | 2014 | 2019 | 40 | 20 |
| Kitan Oladapo | Oregon State | 1 | 2024 | 2024 | 9 | 0 |
| Chris Oladokun | South Florida; Samford; South Dakota State | 1 | 2024 | 2024 | 1 | 0 |
| Cliff Olander | New Mexico State | 3 | 1977 | 1979 | 15 | 1 |
| Deji Olatoye | Colorado; North Carolina A&T State | 4 | 2015 | 2017 | 15 | 2 |
| Chris Olave | Ohio State | 3 | 2022 | 2024 | 39 | 28 |
| Jamize Olawale | Los Angeles Harbor JC; El Camino JC; North Texas | 8 | 2012 | 2019 | 109 | 20 |
| Clint Oldenburg | Colorado State | 1 | 2007 | 2007 | 2 | 0 |
| Bob Olderman | Virginia | 1 | 1985 | 1985 | 16 | 14 |
| Doug Oldershaw | UC Santa Barbara | 3 | 1939 | 1941 | 31 | 10 |
| Chris Oldham | Oregon | 13 | 1990 | 2001 | 156 | 10 |
| Jim Oldham | Arizona | 1 | 1926 | 1926 | 4 | 3 |
| Ray Oldham | Middle Tennessee State | 11 | 1973 | 1982 | 125 | 61 |
| Bill Olds | Nebraska | 5 | 1973 | 1976 | 52 | 33 |
| Dan O'Leary | Notre Dame | 3 | 2001 | 2002 | 17 | 1 |
| Nick O'Leary | Florida State | 6 | 2015 | 2019 | 59 | 24 |
| Stan Olejniczak | Pittsburgh | 1 | 1935 | 1935 | 12 | 6 |
| John Olenchalk | Stanford | 2 | 1981 | 1982 | 10 | 0 |
| Mitch Olenski | Alabama | 2 | 1946 | 1947 | 25 | 22 |
| Dave Olerich | San Francisco | 7 | 1967 | 1973 | 85 | 2 |
| Aaron Oliker | West Virginia | 1 | 1926 | 1926 | 1 | 1 |
| Elmer Oliphant | Purdue; Army | 2 | 1920 | 1921 | 11 | 10 |
| Mike Oliphant | Puget Sound | 3 | 1988 | 1991 | 26 | 0 |
| Bobby Olive | Ohio State | 2 | 1995 | 1996 | 2 | 0 |
| Shane Olivea | Ohio State | 4 | 2004 | 2007 | 60 | 57 |
| Bill Oliver | Alabama | 2 | 1926 | 1927 | 24 | 20 |
| Bob Oliver | Abilene Christian | 1 | 1969 | 1969 | 8 | 0 |
| Branden Oliver | Buffalo | 3 | 2014 | 2017 | 30 | 8 |
| Bryce Oliver | Kentucky; Youngstown State | 1 | 2024 | 2024 | 10 | 1 |
| Chip Oliver | San Diego CC; Southern California | 2 | 1968 | 1969 | 27 | 16 |
| Clancy Oliver | Orange Coast JC; San Diego State | 3 | 1969 | 1973 | 25 | 10 |
| Darryl Oliver | Miami (Florida) | 1 | 1987 | 1987 | 2 | 0 |
| Ed Oliver | Houston | 6 | 2019 | 2024 | 92 | 83 |
| Frank Oliver | Kentucky State | 2 | 1975 | 1976 | 18 | 2 |
| Greg Oliver | Ranger JC; Trinity (Texas) | 2 | 1973 | 1974 | 25 | 0 |
| Hubie Oliver | Arizona | 6 | 1981 | 1986 | 52 | 41 |
| Isaiah Oliver | Colorado | 7 | 2018 | 2024 | 96 | 51 |
| Jack Oliver | Texas-El Paso; Memphis | 1 | 1987 | 1987 | 3 | 3 |
| Jeff Oliver | Boston College | 1 | 1989 | 1989 | 1 | 0 |
| Josh Oliver | San Jose State | 5 | 2019 | 2024 | 68 | 38 |
| Louis Oliver | Florida | 8 | 1989 | 1996 | 117 | 101 |
| Maurice Oliver | Southern Mississippi | 1 | 1991 | 1991 | 3 | 0 |
| Melvin Oliver | Louisiana State | 1 | 2006 | 2006 | 16 | 14 |
| Muhammad Oliver | Glendale CC; Oregon | 5 | 1992 | 1995 | 21 | 2 |
| Paul Oliver | Georgia | 4 | 2008 | 2011 | 57 | 12 |
| Vince Oliver | Indiana | 1 | 1945 | 1945 | 3 | 1 |
| Winslow Oliver | New Mexico | 5 | 1996 | 2000 | 64 | 0 |
| Brock Olivo | Missouri | 4 | 1998 | 2001 | 44 | 0 |
| Neal Olkewicz | Maryland | 11 | 1979 | 1989 | 150 | 137 |
| Qadree Ollison | Pittsburgh | 5 | 2019 | 2023 | 24 | 0 |
| Larry Olmsted | Purdue | 2 | 1922 | 1923 | 6 | 5 |
| Sewo Olonilua | Texas Christian | 1 | 2020 | 2020 | 2 | 0 |
| Jerry Olsavsky | Pittsburgh | 10 | 1989 | 1998 | 117 | 37 |
| Eric Olsen | Notre Dame | 4 | 2010 | 2014 | 23 | 4 |
| Greg Olsen | Miami (Florida) | 14 | 2007 | 2020 | 198 | 170 |
| Hans Olsen | Brigham Young | 1 | 2001 | 2001 | 2 | 0 |
| Merlin Olsen | Utah State | 15 | 1962 | 1976 | 208 | 205 |
| Norm Olsen | Alabama | 2 | 1944 | 1945 | 11 | 0 |
| Orrin Olsen | Brigham Young | 1 | 1976 | 1976 | 14 | 0 |
| Phil Olsen | Utah State | 6 | 1971 | 1976 | 79 | 20 |
| Ralph Olsen | Utah | 1 | 1949 | 1949 | 6 | 0 |
| Seth Olsen | Iowa | 3 | 2009 | 2012 | 14 | 5 |
| Igor Olshansky | Oregon | 8 | 2004 | 2011 | 115 | 98 |
| Benji Olson | Washington | 10 | 1998 | 2007 | 152 | 140 |
| Carl Olson | UCLA | 1 | 1942 | 1942 | 2 | 0 |
| Erik Olson | Colorado State | 1 | 2000 | 2000 | 14 | 0 |
| Forrest Olson | Iowa | 1 | 1927 | 1927 | 3 | 0 |
| Glenn Olson | Iowa | 1 | 1940 | 1940 | 1 | 0 |
| Harold Olson | Clemson | 5 | 1960 | 1964 | 70 | 50 |
| Swede Olson | 1 | 1926 | 1926 | 2 | 0 | |
| Larry Olsonoski | Minnesota | 3 | 1948 | 1949 | 22 | 10 |
| Lance Olssen | Purdue | 2 | 1968 | 1969 | 9 | 0 |
| Les Olsson | Mercer | 5 | 1934 | 1938 | 57 | 47 |
| Al Olszewski | Pittsburgh; Penn State | 1 | 1945 | 1945 | 1 | 0 |
| Gunner Olszewski | Bemidji State | 6 | 2019 | 2023 | 65 | 5 |
| Johnny Olszewski | California | 10 | 1953 | 1962 | 116 | 75 |
| Russ Oltz | Illinois | 5 | 1920 | 1925 | 24 | 23 |
| Segun Olubi | College of Idaho; Saddleback JC; Harding; San Diego State | 3 | 2022 | 2024 | 34 | 2 |
| Donovan Olumba | Alderson-Broaddus; Portland State | 1 | 2019 | 2019 | 1 | 0 |
| Foye Oluokun | Yale | 7 | 2018 | 2024 | 111 | 88 |
| Olu Oluwatimi | Air Force; Virginia; Michigan | 2 | 2023 | 2024 | 28 | 9 |
| Jim O'Mahoney | Miami (Florida) | 2 | 1965 | 1966 | 26 | 1 |
| Jim O'Malley | Notre Dame | 3 | 1973 | 1975 | 40 | 5 |
| Joe O'Malley | Georgia | 2 | 1955 | 1956 | 22 | 9 |
| Ryan O'Malley | Pennsylvania | 2 | 2016 | 2017 | 2 | 0 |
| Tom O'Malley | Cincinnati | 1 | 1950 | 1950 | 1 | 0 |
| Patrick Omameh | Michigan | 10 | 2014 | 2021 | 89 | 58 |
| Charles Omenihu | Texas | 7 | 2019 | 2024 | 78 | 11 |
| Omensky | 1 | 1926 | 1926 | 1 | 1 | |
| Frank Omiyale | Tennessee Tech | 6 | 2006 | 2012 | 75 | 33 |
| Xavier Omon | Northwest Missouri State | 2 | 2008 | 2009 | 7 | 0 |
| Kenny Onatolu | Nebraska-Omaha | 4 | 2009 | 2012 | 52 | 1 |
| Andre O'Neal | Marshall | 4 | 2000 | 2001 | 19 | 2 |
| Brian O'Neal | Penn State | 2 | 1994 | 1995 | 17 | 0 |
| Calvin O'Neal | Michigan | 1 | 1978 | 1978 | 15 | 2 |
| Deltha O'Neal | California | 9 | 2000 | 2008 | 132 | 85 |
| Jim O'Neal | Texas Christian | 2 | 1946 | 1947 | 24 | 7 |
| Ken O'Neal | Chabot JC; Idaho State | 1 | 1987 | 1987 | 2 | 0 |
| Leslie O'Neal | Oklahoma State | 13 | 1986 | 1999 | 196 | 178 |
| Oren O'Neal | Arkansas State | 2 | 2007 | 2009 | 18 | 1 |
| Raiqwon O'Neal | Rutgers; UCLA | 1 | 2023 | 2023 | 3 | 0 |
| Robert O'Neal | Clemson | 1 | 1994 | 1994 | 2 | 0 |
| Steve O'Neal | Texas A&M | 5 | 1969 | 1973 | 70 | 0 |
| Bob O'Neil | Duquesne; Notre Dame | 3 | 1956 | 1961 | 38 | 24 |
| Chuck O'Neil | Phillips | 4 | 1921 | 1923 | 9 | 6 |
| Ed O'Neil | Penn State | 7 | 1974 | 1980 | 100 | 60 |
| Keith O'Neil | Northern Arizona | 4 | 2003 | 2006 | 52 | 0 |
| Bill O'Neill | Detroit Mercy | 2 | 1935 | 1937 | 2 | 0 |
| Brian O'Neill | Pittsburgh | 7 | 2018 | 2024 | 110 | 106 |
| Kevin O'Neill | Bowling Green State | 3 | 1998 | 2000 | 26 | 0 |
| Pat O'Neill | Syracuse | 3 | 1994 | 1995 | 25 | 0 |
| Red O'Neill | Connecticut | 1 | 1926 | 1926 | 9 | 7 |
| Tip O'Neill | St. Norbert; Detroit Mercy | 1 | 1922 | 1922 | 4 | 0 |
| Wally O'Neill | Wisconsin-Superior | 1 | 1925 | 1925 | 3 | 1 |
| Larry Onesti | Northwestern | 4 | 1962 | 1965 | 38 | 15 |
| Dennis Onkotz | Penn State | 1 | 1970 | 1970 | 9 | 0 |
| Fendi Onobun | Arizona; Houston | 2 | 2010 | 2011 | 4 | 0 |
| Bob Ontko | Penn State | 1 | 1987 | 1987 | 3 | 3 |
| Joshua Onujiogu | Framingham State | 1 | 2022 | 2022 | 1 | 0 |
| Mike Onwenu | Michigan | 5 | 2020 | 2024 | 81 | 73 |
| James Onwualu | Notre Dame | 3 | 2017 | 2020 | 16 | 0 |
| Patrick Onwuasor | Arizona; Portland State | 6 | 2016 | 2021 | 64 | 32 |
| Levi Onwuzurike | Washington | 3 | 2021 | 2024 | 42 | 10 |
| David Onyemata | Manitoba | 9 | 2016 | 2024 | 137 | 98 |
| Ed Opalewski | Eastern Michigan | 2 | 1943 | 1944 | 12 | 5 |
| Sua Opeta | Weber State | 4 | 2020 | 2023 | 39 | 10 |
| Dave Opfar | Penn State | 1 | 1987 | 1987 | 3 | 1 |
| Jim Opperman | Colorado State | 1 | 1975 | 1975 | 10 | 0 |
| Toben Opurum | Kansas | 1 | 2015 | 2015 | 2 | 0 |
| Red O'Quinn | Wake Forest | 3 | 1950 | 1951 | 17 | 10 |
| Brian Orakpo | Texas | 10 | 2009 | 2018 | 132 | 132 |
| Anthony Orange | Fresno State | 4 | 2010 | 2013 | 43 | 14 |
| Nate Orchard | Utah | 8 | 2015 | 2021 | 48 | 13 |
| Joe Orduna | Nebraska | 3 | 1972 | 1974 | 39 | 7 |
| O'Reilly | none | 1 | 1924 | 1924 | 1 | 1 |
| Ruke Orhorhoro | Clemson | 1 | 2024 | 2024 | 8 | 0 |
| Frank Ori | Garden City CC; Northern Iowa | 1 | 1987 | 1987 | 3 | 3 |
| Mike Oriard | Notre Dame | 4 | 1970 | 1973 | 42 | 1 |
| Bob Oristaglio | Pennsylvania | 4 | 1949 | 1952 | 40 | 20 |
| Anfernee Orji | Vanderbilt | 1 | 2024 | 2024 | 16 | 2 |
| Bo Orlando | West Virginia | 9 | 1990 | 1998 | 129 | 55 |
| Dan Orlich | Northwestern; Penn State; Nevada-Reno | 3 | 1949 | 1951 | 36 | 26 |
| Dan Orlovsky | Connecticut | 7 | 2005 | 2015 | 26 | 12 |
| Elliott Ormsbee | Bradley | 1 | 1946 | 1946 | 4 | 0 |
| Fred Orns | Chapman | 1 | 1987 | 1987 | 2 | 0 |
| Tom Orosz | Ohio State | 4 | 1981 | 1984 | 43 | 0 |
| Charlie O'Rourke | Boston College | 5 | 1942 | 1949 | 58 | 19 |
| Chris Orr | Wisconsin | 1 | 2020 | 2020 | 3 | 0 |
| Jimmy Orr | Clemson; Georgia | 13 | 1958 | 1970 | 149 | 125 |
| Kareem Orr | Arizona State; Tennessee-Chattanooga | 3 | 2019 | 2021 | 9 | 0 |
| Leon Orr | Florida | 2 | 2015 | 2016 | 8 | 0 |
| Raheem Orr | Rutgers | 1 | 2004 | 2004 | 2 | 0 |
| Shantee Orr | Michigan | 7 | 2003 | 2008 | 65 | 25 |
| Terry Orr | Texas | 9 | 1986 | 1993 | 105 | 19 |
| Zach Orr | North Texas | 3 | 2014 | 2016 | 47 | 15 |
| Buck Ortega | Miami (Florida) | 2 | 2008 | 2009 | 12 | 1 |
| Ralph Ortega | Florida | 6 | 1975 | 1980 | 81 | 25 |
| Keith Ortego | McNeese State | 3 | 1985 | 1987 | 31 | 13 |
| Henry Orth | Miami (Ohio) | 1 | 1921 | 1921 | 1 | 1 |
| Ricky Ortiz | Oregon State | 2 | 2018 | 2019 | 13 | 9 |
| Chuck Ortmann | Michigan | 2 | 1951 | 1952 | 15 | 2 |
| Greg Orton | Nebraska | 1 | 1987 | 1987 | 3 | 3 |
| Kyle Orton | Purdue | 10 | 2005 | 2014 | 87 | 82 |
| Amani Oruwariye | Penn State | 5 | 2019 | 2024 | 57 | 38 |
| Herb Orvis | Colorado | 10 | 1972 | 1981 | 122 | 104 |
| Ossie Orwoll | Luther | 1 | 1926 | 1926 | 2 | 1 |
| Matt Orzech | Azusa Pacific | 5 | 2019 | 2024 | 84 | 0 |
| Dave Osborn | North Dakota | 12 | 1965 | 1976 | 143 | 66 |
| Duke Osborn | Penn State | 8 | 1921 | 1928 | 81 | 70 |
| K.J. Osborn | Buffalo; Miami (Florida) | 6 | 2020 | 2024 | 66 | 34 |
| Mike Osborn | Kansas State | 1 | 1978 | 1978 | 16 | 1 |
| Chuck Osborne | Arizona | 3 | 1996 | 1999 | 37 | 1 |
| Clancy Osborne | Arizona State | 6 | 1959 | 1964 | 74 | 62 |
| Eldonta Osborne | Louisiana Tech | 1 | 1990 | 1990 | 12 | 0 |
| Jim Osborne | Southern University | 13 | 1972 | 1984 | 186 | 154 |
| Richard Osborne | Texas A&M | 5 | 1976 | 1979 | 50 | 10 |
| Tom Osborne | Hastings | 2 | 1960 | 1961 | 24 | 5 |
| Vince Osby | Pasadena CC; Illinois | 2 | 1984 | 1985 | 23 | 0 |
| Kelechi Osemele | Iowa State | 9 | 2012 | 2020 | 101 | 101 |
| Kassim Osgood | Cal Poly (San Luis Obispo); San Diego State | 12 | 2003 | 2014 | 179 | 17 |
| James O'Shaughnessy | Illinois State | 7 | 2015 | 2021 | 80 | 40 |
| Terry O'Shea | California (Pennsylvania) | 2 | 1989 | 1990 | 32 | 2 |
| Baba Oshinowo | Stanford | 2 | 2006 | 2007 | 2 | 0 |
| Willie Oshodin | Villanova | 3 | 1993 | 1995 | 30 | 5 |
| Sandy Osiecki | Arizona State | 1 | 1984 | 1984 | 4 | 0 |
| Craig Osika | Indiana | 1 | 2003 | 2003 | 1 | 0 |
| Willie Osley | Illinois | 2 | 1974 | 1974 | 13 | 4 |
| Bill Osmanski | Holy Cross | 7 | 1939 | 1947 | 49 | 25 |
| Joe Osmanski | Holy Cross | 5 | 1946 | 1949 | 44 | 28 |
| Joseph Ossai | Texas | 3 | 2022 | 2024 | 48 | 3 |
| Ted Ossowski | Oregon State; Southern California; Oregon State | 1 | 1947 | 1947 | 3 | 0 |
| Dwayne O'Steen | California; San Jose State | 8 | 1978 | 1984 | 77 | 27 |
| Jim Ostendarp | Drexel; Bucknell | 2 | 1950 | 1951 | 14 | 1 |
| Joe Ostman | Central Michigan | 1 | 2020 | 2020 | 3 | 0 |
| Jerry Ostroski | Tulsa | 8 | 1994 | 2001 | 106 | 102 |
| Chet Ostrowski | Notre Dame | 6 | 1954 | 1959 | 68 | 61 |
| Phil Ostrowski | Penn State | 2 | 1999 | 2000 | 28 | 0 |
| Dennis O'Sullivan | Tulane | 1 | 2002 | 2002 | 3 | 0 |
| J.T. O'Sullivan | UC Davis | 4 | 2004 | 2009 | 17 | 8 |
| Paul Oswald | Kansas | 3 | 1987 | 1988 | 6 | 1 |
| Brock Osweiler | Arizona State | 7 | 2012 | 2018 | 49 | 30 |
| Jeff Otah | Valley Forge Military Academy JC; Pittsburgh | 3 | 2008 | 2011 | 29 | 29 |
| Jim Otis | Ohio State | 9 | 1970 | 1978 | 116 | 51 |
| Esezi Otomewo | Minnesota | 2 | 2022 | 2024 | 9 | 2 |
| Bill O'Toole | none | 1 | 1924 | 1924 | 1 | 0 |
| Tyler Ott | Harvard | 9 | 2015 | 2024 | 119 | 0 |
| Lowell Otte | Iowa | 2 | 1926 | 1927 | 14 | 8 |
| Dick Ottele | Washington | 1 | 1948 | 1948 | 9 | 4 |
| John Otterbacher | Ohio State | 1 | 1926 | 1926 | 2 | 0 |
| Brad Ottis | Wayne State (Nebraska) | 6 | 1994 | 2000 | 81 | 23 |
| Al Otto | none | 2 | 1922 | 1923 | 7 | 7 |
| Bob Otto | Idaho State | 2 | 1986 | 1987 | 7 | 0 |
| Gus Otto | Missouri | 8 | 1965 | 1972 | 102 | 95 |
| Jim Otto | Miami (Florida) | 15 | 1960 | 1974 | 210 | 210 |
| Mike Otto | Purdue | 6 | 2008 | 2013 | 62 | 7 |
| Cade Otton | Washington | 3 | 2022 | 2024 | 47 | 42 |
| Louis Oubre | Oklahoma | 4 | 1982 | 1987 | 40 | 31 |
| Greg Ours | Muskingum | 1 | 1987 | 1987 | 3 | 3 |
| Wes Ours | West Virginia | 1 | 2001 | 2001 | 3 | 0 |
| Johnny Outlaw | Jackson State | 10 | 1969 | 1978 | 109 | 90 |
| Jeff Overbaugh | San Diego State | 2 | 2017 | 2018 | 2 | 0 |
| Chad Overhauser | UCLA | 1 | 2002 | 2002 | 3 | 0 |
| Bill Overmyer | Ashland | 1 | 1972 | 1972 | 6 | 0 |
| DeMarvion Overshown | Texas | 1 | 2024 | 2024 | 13 | 12 |
| David Overstreet | Oklahoma | 1 | 1983 | 1983 | 14 | 0 |
| Will Overstreet | Tennessee | 2 | 2002 | 2003 | 6 | 2 |
| Don Overton | Fairmont State | 3 | 1990 | 1992 | 22 | 0 |
| Jerry Overton | Utah | 1 | 1963 | 1963 | 10 | 1 |
| Matt Overton | Diablo Valley JC; Western Washington | 11 | 2012 | 2024 | 142 | 0 |
| Jayson Oweh | Penn State | 4 | 2021 | 2024 | 62 | 22 |
| Al Owen | St. Lawrence; Mercer | 3 | 1939 | 1942 | 17 | 2 |
| Bill Owen | Oklahoma State; Phillips | 11 | 1926 | 1936 | 138 | 104 |
| Steve Owen | Phillips | 10 | 1924 | 1933 | 95 | 77 |
| Tom Owen | Wichita State | 6 | 1974 | 1981 | 26 | 9 |
| Artie Owens | West Virginia | 6 | 1976 | 1980 | 64 | 5 |
| Billy Owens | Pittsburgh | 1 | 1988 | 1988 | 16 | 0 |
| Brick Owens | Nebraska; Lawrence | 1 | 1922 | 1922 | 3 | 2 |
| Brig Owens | Fullerton JC; Cincinnati | 12 | 1966 | 1977 | 158 | 124 |
| Burgess Owens | Miami (Florida) | 10 | 1973 | 1982 | 137 | 137 |
| Chad Owens | Hawaii | 3 | 2005 | 2007 | 6 | 0 |
| Chris Owens | San Jose State | 8 | 2009 | 2015 | 87 | 17 |
| Dan Owens | Southern California | 10 | 1990 | 1999 | 145 | 86 |
| Darrick Owens | Northeastern Oklahoma A&M JC; Mississippi | 1 | 1992 | 1992 | 3 | 0 |
| Dennis Owens | North Carolina State | 5 | 1982 | 1986 | 71 | 44 |
| Don Owens | Southern Mississippi | 8 | 1957 | 1963 | 87 | 75 |
| Gervarrius Owens | Northeastern Oklahoma A&M JC; Houston | 2 | 2023 | 2024 | 5 | 0 |
| Ike Owens | Illinois | 1 | 1948 | 1948 | 9 | 9 |
| James Owens | UCLA | 6 | 1979 | 1984 | 70 | 18 |
| Jeff Owens | Georgia | 1 | 2010 | 2010 | 1 | 0 |
| Jim Owens | Oklahoma | 1 | 1950 | 1950 | 8 | 6 |
| Joe Owens | Alcorn State | 7 | 1970 | 1976 | 87 | 51 |
| John Owens | Notre Dame | 8 | 2002 | 2009 | 76 | 19 |
| Jonathan Owens | Missouri Western State | 6 | 2019 | 2024 | 65 | 35 |
| Luke Owens | Kent State | 9 | 1957 | 1965 | 115 | 86 |
| Marv Owens | San Diego State | 2 | 1973 | 1974 | 10 | 0 |
| Mel Owens | Michigan | 9 | 1981 | 1989 | 122 | 91 |
| Montell Owens | Maine | 10 | 2006 | 2014 | 111 | 4 |
| Morris Owens | Arizona State | 6 | 1975 | 1979 | 62 | 47 |
| Pete Owens | Texas Tech | 1 | 1943 | 1943 | 5 | 2 |
| R.C. Owens | College of Idaho | 8 | 1957 | 1964 | 90 | 55 |
| Rich Owens | Lehigh | 8 | 1995 | 2002 | 97 | 52 |
| Richard Owens | Louisville | 4 | 2004 | 2007 | 53 | 7 |
| Steve Owens | Oklahoma | 5 | 1970 | 1974 | 53 | 39 |
| Terrell Owens | Tennessee-Chattanooga | 15 | 1996 | 2010 | 219 | 201 |
| Terry Owens | Alabama; Jacksonville State | 10 | 1966 | 1975 | 132 | 104 |
| Tinker Owens | Oklahoma | 4 | 1976 | 1980 | 48 | 13 |
| Tyler Owens | Texas; Texas Tech | 1 | 2024 | 2024 | 12 | 0 |
| Chris Owusu | Stanford | 5 | 2012 | 2015 | 25 | 6 |
| Akwasi Owusu-Ansah | Indiana (Pennsylvania) | 4 | 2010 | 2013 | 15 | 2 |
| Jeremiah Owusu-Koramoah | Notre Dame | 4 | 2021 | 2024 | 49 | 41 |
| Ken Oxendine | Virginia Tech | 2 | 1998 | 1999 | 21 | 9 |
| Mike Ozdowski | Virginia | 4 | 1978 | 1981 | 54 | 30 |
| Devine Ozigbo | Nebraska | 6 | 2019 | 2023 | 28 | 0 |
| Cheta Ozougwu | Rice | 2 | 2012 | 2013 | 9 | 0 |
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| Last Updated: July 1, 2025 |