Agricultural Hall of Fame
Many OAC alumni have been inducted into Agricultural Halls of Fame at both the national and provincial levels.
National
Established in 1960, the Canadian Agricultural Hall of Fame honours and celebrates Canadians who have made outstanding contributions to the Agriculture and Food industries. Many OAC alumni have been the recipients of this national honour:
| Year | Name & Graduating Class | Year | Name & Graduating Class |
| 1961 | Robert W. Wade 1905 | 1975 | William R. Graham 1894 |
| 1962 | Robert M. Holtby 1886 | 1976 | George E. Raithby 1922 |
| 1962 | Walter D. Jackson 1909 | 1977 | Leonard H. Newman 1903 |
| 1962 | William R. Motherwell 1881 | 1978 | Helen May McKercher 1930 |
| 1963 | Herbert H. Hannam 1926 | 1983 | Frederick M. Campbell 1938 |
| 1963 | Percy H. Moore 1910 | 1984 | Edward T. McLaughlin 1937 |
| 1964 | G.S. Horace Barton 1907 | 1986 | F.W. Presant 1923 |
| 1964 | George E. Day 1893 | 1990 | G.F. Townsend 1938 |
| 1966 | William J. Rutherford 1903 | 1991 | J. Clarence Rennie 1947 |
| 1967 | John J.E. McCague 1921 | 1993 | Everett Biggs 1948 |
| 1971 | Ernest Charles Drury 1900 | 1996 | Robert Hardy Shore 1951 |
| 1971 | William P. Watson 1928 | 1998 | Clayton Switzer 1951 |
| 1972 | John Arthur Carroll 1914 | 1999 | George R. McLaughlin 1946 |
| 1972 | William Robert Reek 1910 | 2001 | Charles Gracey 1958 |
| 1973 | Erle Kitchen 1910 | 2004 | John E. Moles 1936 |
| 1974 | Charles A. Zavitz 1888 | 2005 | Byron E. Beeler 1963 |
Provincial
On a provincial level, the Ontario Agricultural Hall of Fame opened June 1st, 1980 with the induction of nine pioneer agriculturists, three of them graduates from OAC. Since that time, many more OAC alumni have been presented with this honour in recognition of their significant contributions to the welfare and improvement of Ontario agriculture.
| Year | Name & Graduating Class | Year | Name & Graduating Class |
| 1980 | Stewart A. Brown 1947 | 1994 | George A. McCague 1928 |
| 1980 | James A. Garner 1923 | 1996 | James Ross Cavers 1929 |
| 1980 | Herbert H. Hannam 1926 | 1998 | Arthur H. K. Musgrave 1920 |
| 1981 | David A. Jones 1966 | 1998 | Douglas Lyle Parks 1940 |
| 1982 | William H. Bell 1915 | 1999 | A. Mac Cuddy 1942 |
| 1982 | George I. Christie 1902 | 2001 | Ken Lantz 1945 |
| 1982 | Douglas H. Hart 1922 | 2002 | Gordon Bennett 1943 |
| 1983 | T. Richard Hilliard 1940 | 2002 | Oliver Bradt 1938 |
| 1983 | Joseph E. Johnson 1919 | 2002 | Rick Richards 1938 |
| 1983 | Alexander R. Stewart 1899 | 2002 | George Early 1960 (Ridgetown) |
| 1984 | Watson H. Porter 1911 | 2002 | Donald M. Shaver 1995 |
| 1984 | George E. Raithby 1922 | 2003 | George McLaughlin 1946 |
| 1986 | William Graham 1894 | 2004 | Tom E. Chudleigh 1963 |
| 1986 | Alexander McKinney IV 1961 | 2004 | Alex F. Henry 1951 |
| 1986 | Edmund F. Palmer 1913 | 2004 | Donald N. Huntley 1941 |
| 1986 | Alma J. Wagg 1900 | 2004 | Francis Redelmeier 1941, 1945 |
| 1988 | Helen May McKercher 1930 | 2005 | Brian S. Ellsworth 1959 |
| 1988 | George N. Runke 1923 | 2005 | Murray Gaunt 1956 |
| 1989 | Ernest C. Drury 1900 | 2005 | Garnet A. Ralph 1947 (Kemptville) |
| 1990 | John J. E. McCague 1921 | 2005 | Clayton M. Switzer 1951 |
| 1991 | Elliot Irwin McLoughry 1922 | 2006 | Harvey J. Brown 1963 |
| 1991 | Osborne L. Sager 1925 | 2006 | Keith R. Collver 1949 |
| 1991 | Harold W.M Smith 1916 | 2006 | Ross W. Irwin 1951 |
| 1992 | John A. Dalrymple 1935 | 2006 | George E. Jones 1950 |
| 1993 | Lawrence McKay Kerr 1929 | 2006 | J. Stanley Knapp 1914 |
| 1994 | George Stuart Atkins 1939 | 2006 | W. Stanley Young 1949 |
