Pittsburgh is a former incorporated and now geographic township in Ontario, Canada. Located within Frontenac County, it was surveyed in 1787–1788 and named for William Pitt the Younger, the British prime minister. It was incorporated on January 1, 1850. The township was amalgamated into the city of Kingston effective January 1, 1998. The community still retains the name "Pittsburgh" within the government of Kingston.
Pittsburgh Township is home to Fort Henry, Canadian Forces Base Kingston, the Royal Military College of Canada and the historic community of Barriefield, Ontario. It includes the east side of the UNESCO-listed Rideau Canal at Kingston Mills (site of the Shafia family murders), hosts a handful of motels serving Ontario Highway 15 and former Ontario Highway 2, a federal prison (Pittsburgh and Joyceville Institutions in Joyceville, Ontario) and three museums (Military Communications and Electronics Museum, RMC Museum and MacLachlan Woodworking Museum).
Pittsburgh Township, separated from Kingston by the Cataraqui River, is linked to the downtown by the La Salle Causeway. The Waaban Crossing, located between the La Salle Causeway and Highway 401, opened in 2022.
Former reeves
John Marks 1850–1854
Samuel Rees 1855–1857
John Ruttan 1858
Alexander McArthur 1859–1860
Hugh McCaugherty 1861–1862
James Hutton 1863
William Ferguson Jr. 1864
Martin Strachan 1865–1870, 1876–1879
Peter Graham (W) 1871–1875
Thomas Stark 1880–1881
Richard Patterson 1882–1884
Richard Anglin 1885
Michael Graves 1886
William Hutton 1887–1888, 1890
David Trotter 1889
Thompson Whitney 1891–1893
William Toner 1894
John Kane 1895–1896
John Bennett 1897–1898
Robert McAlpin 1899
Daniel C. McLean 1900
Daniel McLean 1901–1902
Thomas Maxwell 1903
James Greenlee 1904
John McFarlane 1905–1906
William Franklin (W) 1907–1908, 1912–1917
Thomas Spence 1909
James Gordon 1910
David Rogers 1911
George Maitland 1918–1920
John Sibbit (W) 1921–1926, 1932–1938
Alfred Franklin 1927–1928, 1931
William Atkinson 1929–1930
John McMaster (W) 1939–1943
Wilson Franklin 1944–1945
Colin Woods (W) 1946–1950
Robert Wilson 1951–1953
Earl Shepard (W) 1954–1958
Eric Pearson (W) 1959–1966
Hugh Wilson 1967–1968
Wilmer Nuttal (W) 1969–1971
Donald Hunter 1972
Edward Swayne (W) 1973–1980
Hans Westenberg 1981–1982
Vincent Maloney 1983–1985
Cameron English (W) 1986–1988
Barry Gordon 1989–1994
Carl Holmberg 1995–1997
