The following is a list of mayors of Ottawa. Until 1854, Ottawa was known as Bytown. Over the course of Ottawa's history, the borders of the municipality have greatly expanded through annexations. This most recently occurred in 2001 when a number of neighbouring communities were amalgamated with Ottawa.

Bytown 1847 – John Scott 1848 – John Bower Lewis 1849 – Robert Hervey 1850 – John Scott 1851 – Charles Sparrow 1852 – Richard William Scott 1853 – Joseph-Balsora Turgeon 1854 – Henry J. Friel

Ottawa, pre-amalgamation (1855–2001) 1855–1857 – John Bower Lewis 1858–1859 – Edward McGillivray 1860–1862 – Alexander Workman 1863 – Henry J. Friel 1864–1866 – Moss Kent Dickinson 1867 – Robert Lyon 1868–1869 – Henry J. Friel 1870–1871 – John Rochester 1872–1873 – Eugène Martineau 1874–1875 – John Peter Featherston 1876 – G. B. Lyon-Fellowes 1876–1877 – William Henry Waller 1878 – Chauncey Ward Bangs 1879–1881 – Charles Herbert Mackintosh 1882–1883 – Pierre St. Jean, M.D. 1884 – Charles Thornton Bate 1885–1886 – Francis McDougal 1887–1888 – McLeod Stewart 1889–1890 – Jacob Erratt 1891 – Thomas Birkett 1892–1893 – Olivier Durocher 1894 – George Cox 1895–1896 – William Borthwick 1897–1898 – Samuel Bingham 1899–1900 – Thomas Payment 1901 – William Dowler Morris 1901 – James Davidson 1902–1903 – Fred Cook 1904–1906 – James A. Ellis 1906 – Robert A. Hastey 1907–1908 – D'Arcy Scott 1908 – Napoléon Champagne 1909–1912 – Charles Hopewell 1912 – Edward H. Hinchey 1913 – James A. Ellis 1914 – Taylor McVeity 1915–1916 – Nelson D. Porter 1917–1920 – Harold Fisher 1921–1923 – Frank H. Plant 1924 – Henry Watters 1924 – Napoléon Champagne 1925–1927 – John P. Balharrie 1928–1929 – Arthur Ellis 1930 – Frank H. Plant 1931–1933 – John J. Allen 1934–1935 – Patrick Nolan 1936–1948 – J.E. Stanley Lewis 1949–1950 – E.A. Bourque 1951 – Grenville Goodwin 1951–1956 – Charlotte Whitton 1957–1960 – George H. Nelms 1961–1964 – Charlotte Whitton 1965–1969 – Donald Bartlett Reid 1970–1972 – Kenneth H. Fogarty, Q.C. 1972–1974 – Pierre Benoit 1975–1978 – Lorry Greenberg 1978–1985 – Marion Dewar 1985–1991 – James A. Durrell 1991 – Marc Laviolette 1991–1997 – Jacquelin Holzman 1997–2000 – Jim Watson 2000–2001 – Allan Higdon (acting)

Amalgamation When the city of Ottawa amalgamated in 2001, these were the mayors of the municipalities that amalgamated:

Chair of the Regional Municipality of Ottawa–Carleton: Bob Chiarelli Ottawa: Allan Higdon (acting) Gloucester: Claudette Cain Kanata: Merle Nicholds Nepean: Mary Pitt Vanier: Guy Cousineau Cumberland: Gerry Lalonde (acting) Goulbourn: Janet Stavinga Osgoode: Doug Thompson Rideau: Glenn Brooks West Carleton: Dwight Eastman Rockcliffe Park: Patrick J. Murray

Since amalgamation (2001–present) No. Photo Mayor Terms of office Took office Left office 57 2 January 1, 2001 December 1, 2006 58 1 December 1, 2006 November 30, 2010 — (acting) — May 2, 2009 July 8, 2009 — (acting) — July 8, 2009 August 6, 2009 56 4 December 1, 2010 November 15, 2022 59 1 November 15, 2022 Incumbent

Notes

See also

List of Ottawa municipal elections Mayors of Osgoode Township