Sir George Eulas Foster, PC, GCMG (September 3, 1847 – December 30, 1931) was a Canadian politician and academic.

Foster was a Member of Parliament (MP) and a Senator in the Canadian Parliament for a total of 45 years, 5 months and 24 days. He enjoys the unique distinction of having served in the cabinets of seven Canadian Prime Ministers: Macdonald, Abbott, Thompson, Bowell, Tupper, Borden and Meighen.

He coined the phrase "splendid isolation" to praise British foreign policy in the late 19th century. ^[1]

Two factors thwarted whatever ambitions he may have had to become Prime Minister himself: his legally questionable marriage in Chicago to his newly divorced former landlady,^[2] and his later involvement in a trust company scandal.^[3]

Born in Carleton County, New Brunswick, Foster received a Bachelor of Arts degree from the University of New Brunswick in 1868.

He taught in various high schools and seminaries until 1870 when he was appointed Professor of Classics and Ancient Literature in the University of New Brunswick. He shortly afterwards studied in Edinburgh, Scotland, and Heidelberg, Germany, resuming his professorship in 1873. He resigned in 1879 and became a noted temperance lecturer.^[4]

Foster entered politics with his election to the House of Commons of Canada in the 1882 federal election as a Conservative MP representing New Brunswick. He joined the Cabinet of Sir John A. Macdonald as Minister of Marine and Fisheries in 1885, and was promoted to Minister of Finance in 1888. Foster retained this position after Macdonald's death and through the successive governments of Prime Ministers Abbott, Thompson, Bowell and Tupper. He led a group of seven cabinet ministers who resigned temporarily in January 1896 to force the retirement of Bowell, who denounced them as a 'nest of traitors'. Foster's debates with Sir Richard Cartwright, the former Liberal Minister of Finance under Prime Minister Mackenzie, are the stuff of Canadian Parliamentary legend.

With the defeat of the Tories in the 1896 election, Foster retained his seat and joined the Opposition. He was a prominent supporter of Canada's involvement in the Anglo-Boer War from 1899 to 1901. He lost his seat in the 1900 election but returned to parliament in 1904, this time representing the riding of Toronto North in Ontario. He remained an Opposition MP until his party returned to government in the 1911 federal election under Sir Robert Borden and he continued in the government under Arthur Meighen.

During his final years in cabinet, Foster served as Minister of Trade and Commerce, and received a knighthood (KCMG) in 1914 for his work in the Royal Commission on Imperial Trade; he was named to the Imperial Privy Council in 1916 and elevated to GCMG in 1918.^[5] He served as a Canadian delegate to the 1919 Versailles Peace Conference. He was acting Prime Minister in 1920, when Borden was absent due to ill health. From 1920 to 1921, he was chairman of the Canadian delegation to the first assembly of the League of Nations. In 1921, he was appointed to the Canadian Senate in which he served until his death.

His first wife was the ex-spouse of Daniel Black Chisholm, a former Liberal-Conservative Ontario MP, and his second wife was a daughter of Sir William Allan, a former British MP for Gateshead.

He died without issue. Foster and his first wife are buried in Ottawa's Beechwood Cemetery, near the grave of Sir Cecil Spring Rice.^[10]

Following his death, Foster's widow granted Canadian historian William Stewart Wallace permission to produce an authorized biography of her late husband. Wallace was provided manuscripts, papers, and diary entries handwritten by Foster, including an unfinished autobiography. Wallace's biography of Foster, titled The Memoirs of the Rt. Hon. Sir George Foster, was published in 1933.^[11]

There is a George Foster fonds at Library and Archives Canada.^[12]

By-election: On election being declared void

By-election: On Mr. Foster's acceptance of the office of Minister of Marine and Fisheries