2024 Warden Darren White is the 147th Warden of Dufferin County.
Past Wardens
| Year | Name | Municipality | Position |
| 1879 | F.C. Stewart | Orangeville | Reeve |
| 1880 | Robert Henderson | ||
| 1881 | F.C. Stewart | Orangeville | Reeve |
| 1882 | Colwell Graham | Mulmur | Reeve |
| 1883 | Robert Wilson | Mono | Reeve |
| 1884 | John Gillespie | Amaranth | Reeve |
| 1885 | William Jelly | Shelburne | Reeve |
| 1886 | George Bailey | Melancthon | Reeve |
| 1887 | John Gilchrist | Orangeville | Reeve |
| 1888 | W.H.Hunter | East Garafraxa | Reeve |
| 1889 | Andrew Richardson | East Luther | Reeve |
| 1890 | Robert Gallaugher | Mulmur | Reeve |
| 1891 | Richard Allen | Mono | Reeve |
| 1892 | William Johnston | Amaranth | Reeve |
| 1893 | William Jelly | Shelburne | Reeve |
| 1894 | Samuel McDowell | Melancthon | Reeve |
| 1895 | Harry Gillespie | Orangeville | Reeve |
| 1896 | John Turner | East Garafraxa | Reeve |
| 1897 | R.A. Riky | Shelburne | Reeve |
| 1898 | W.H. Hunter | East Garafraxa | Reeve |
| 1899 | John Park | East Luther | Reeve |
| 1900 | Samuel Ewing | Mono | Reeve |
| 1901 | R.J. Reaburn | Mulmur | Reeve |
| 1902 | W.A. Wansbrough | Amaranth | Reeve |
| 1903 | Alexander Richardson | Grand Valley | Reeve |
| 1904 | John L. Island | Orangeville | Reeve |
| 1905 | Paul Gallaugher | Mulmur | Reeve |
| 1906 | Samuel Platt | East Luther | Reeve |
| 1907 | James Armstrong | Orangeville | Reeve |
| 1908 | Dr. E.C. Campbell | Shelburne | Reeve |
| 1909 | W. J. Dynes | Mono | Reeve |
| 1910 | James J. Reith | Grand Valley | Reeve |
| 1911 | Archibald Greer | Mulmur | Reeve |
| 1912 | J.A. Cornelius | East Garafraxa | Reeve |
| 1913 | John Bryan | Amaranth | Reeve |
| 1914 | T.C. Dryden | Melancthon | Reeve |
| 1915 | John Reburn | Mulmur | Reeve |
| 1916 | J.A. Marshall | Mono | Reeve |
| 1917 | Hugh Falconer | Shelburne | Reeve |
| 1918 | Alfred Menary | Grand Valley | Reeve |
| 1919 | H.H. Hilborn | East Luther | Reeve |
| 1920 | C.V. Jeffers | Orangeville | Reeve |
| 1921 | James Brown | East Garafraxa | Reeve |
| 1922 | T. F. Simpson | Amaranth | Reeve |
| 1923 | Archie Vance | Melancthon | Reeve |
| 1924 | James Henderson | Mulmur | Reeve |
| 1925 | Telford S. Parkinson | Orangeville | Reeve |
| 1926 | D.E. Dean | Shelburne | Reeve |
| 1927 | W.A. Donaldson | Mono | Reeve |
| 1928 | H.O. Ewing | Amaranth | Reeve |
| 1929 | R. Lang | Grand Valley | Reeve |
| 1930 | R.W. Brett | Shelburne | Reeve |
| 1931 | Edward Watson | Melancthon | Reeve |
| 1932 | J.E. Thompson (Dec'd Apr 1932) | Orangeville | Reeve |
| 1932 | Norman Lindsay (May 2, 1932) | Mono | Reeve |
| 1933 | E. Ray Cunningham | Mulmur | Reeve |
| 1934 | Ernet Tovell | East Luther | Reeve |
| 1935 | T.F. Brown | Shelburne | Reeve |
| 1936 | Donald L. Gear | East Garafraxa | Reeve |
| 1937 | George Cameron | Orangeville | Reeve |
| 1938 | Harold S. Marshall | Mono | Reeve |
| 1939 | R.C.Dynes | Melancthon | Reeve |
| 1940 | Hugh Bryan | Amaranth | Reeve |
| 1941 | T.J. O'Flynn | Shelburne | Reeve |
| 1942 | Hugh Reid | East Garafraxa | Reeve |
| 1943 | James H. Hillis | East Luther | Reeve |
| 1944 | E. Allan McIntyre | Grand Valley | Reeve |
| 1945 | R.A. Marshall | Orangeville | Reeve |
| 1946 | William J. Farnell | Amaranth | Reeve |
| 1947 | Harvey C. Curry | Orangeville | Reeve |
| 1948 | Robert J. Mills | Melancthon | Reeve |
| 1949 | Stanley Potter | East Luther | Reeve |
| 1950 | Enos Brett | Mono | Reeve |
| 1951 | Claude Duffin | Mulmur | Reeve |
| 1952 | Harry Thompson | East Garafraxa | Reeve |
| 1953 | George Burnside | Amaranth | Reeve |
| 1954 | Victor Phillips | Shelburne | Reeve |
| 1955 | John Doney | Melancthon | Reeve |
| 1956 | Eric M. White | Mono | Reeve |
| 1957 | Roy Hunter | East Luther | Reeve |
| 1958 | Walker Montgomery | Orangeville | Reeve |
| 1959 | Edward Eastham | Grand Valley | Reeve |
| 1960 | Delisle Everson | East Garafraxa | Reeve |
| 1961 | Reginald Brett | Mulmur | Reeve |
| 1962 | Ellwood Madill | Mono | Reeve |
| 1963 | John Dolmer | Melancthon | Reeve |
| 1964 | Earl Lanktree | Amaranth | Reeve |
| 1965 | H. B. Taylor | East Luther | Reeve |
| 1966 | Arnold Patterson | Orangeville | Reeve |
| 1967 | Eldon Marshall | Melancthon | Reeve |
| 1968 | Roy Hillis | East Garafraxa | Reeve |
| 1969 | Arnold Burnside | Amaranth | Reeve |
| 1970 | Lloyd Armstrong | Mono | Reeve |
| 1971 | Ross Brown | East Luther | Reeve |
| 1972 | Allan McKelvie | Shelburne | Reeve |
| 1973 | Harold Lennox | Mono | Reeve |
| 1974 | Lloyd Thomson | Orangeville | Deputy Reeve |
| 1975 | Lorne Brown | East Garafraxa | Reeve |
| 1976 | Gordon Oldfield | Melancthon | Reeve |
| 1977 | Charles Bryan | Amaranth | Reeve |
| 1978 | John Newton | Mulmur | Reeve |
| 1979 | Michael Bradshaw | Shelburne | Reeve |
| 1980 | Royce Reilly | East Luther | Reeve |
| 1981 | Bill Young | Grand Valley | Reeve |
| 1982 | George Reid | Mono | Reeve |
| 1983 | Charles Bryan | Amaranth | Reeve |
| 1984 | Piet Bouwhuis | East Luther | Reeve |
| 1985 | Irene Davis | Shelburne | Reeve |
| 1986 | John Gardhouse | East Garafraxa | Reeve |
| 1987 | Arnold Patterson | Orangeville | Reeve |
| 1988 | John Newton | Mulmur | Reeve |
| 1989 | Ernie Staveley | Mono | Reeve |
| 1990 | Victor Large | Orangeville | Deputy Reeve |
| 1991 | John Franklin | Mulmur | Deputy Reeve |
| 1992 | Robert Daniel | East Luther | Reeve |
| 1993 | Robert Shirley | Mono | Deputy Reeve |
| 1994 | Pat Kalapaca | Grand Valley | Reeve |
| 1995 | Rob Adams | Orangeville | Deputy Reeve |
| 1996 | Rob Adams | Orangeville | Deputy Reeve |
| 1997 | Rob Adams | Orangeville | Deputy Reeve |
| 1998 | Rob Adams | Orangeville | Mayor |
| 1999 | Ed Crewson | Shelburne | Mayor |
| 2000 | Ed Crewson | Shelburne | Mayor |
| 2001 | John Creelman | Mono | Mayor |
| 2002 | John Creelman | Mono | Mayor |
| 2003 | Gordon Gallaugher | Mulmur | Mayor |
| 2004 | Keith Thompson | Mono | Mayor |
| 2005 | John K. Oosterhof | East Luther Grand Valley | Mayor |
| 2006 | J. Earl Lennox | East Garafraxa | Mayor |
| 2007 | John K. Oosterhof | East Luther Grand Valley | Mayor |
| 2008 | John K. Oosterhof | East Luther Grand Valley | Mayor |
| 2009 | Gordon D. Montgomery | Mulmur | Mayor |
| 2010 | Allen Taylor | East Garafraxa | Mayor |
| 2011 | Warren Maycock | Orangeville | Deputy Mayor |
| 2012 | Walter Kolodziechuk | Amaranth | Deputy Mayor |
| 2013 | Laura Ryan | Mono | Mayor |
| 2014 | Bill Hill | Melancthon | Mayor |
| 2015 | Warren Maycock | Orangeville | Deputy Mayor |
| 2016 | Laura Ryan | Mono | Mayor |
| 2017 | Darren White | Melancthon | Mayor |
| 2018 | Paul Mills | Mulmur | Mayor |
| 2019 | Darren White | Melancthon | Mayor |
| 2020 | Darren White | Melancthon | Mayor |
| 2021 | Darren White | Melancthon | Mayor |
| 2022 | Wade Mills | Shelburne | Mayor |
| 2023 | Wade Mills | Shelburne | Mayor |