Sir George Eulas Foster (September 3 1847 - December 30 1931) was a Canadian politician and academic.

A professor of classics at the University of New Brunswick, Foster entered politics with his election to the Canadian House of Commons in the 1882 federal election as a Conservative representing New Brunswick. He immediately joined the Cabinet of Sir John A. Macdonald as Minister of Marine and Fisheries 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.

With the defeat of the Tories in the 1896 Canadian election, Foster retained his seat and joined the Opposition. He lost his seat in the 1900 Canadian election but returned to parliament in 1904, this time representing a Toronto area riding, and remained an Opposition MP until his party returned to government in the 1911 federal election under Robert Borden. Foster returned to Cabinet as Minister of Trade and Commerce and served as a Canadian delegate to the 1919 Versailles Peace Conference. In 1921 he was elevated to the Canadian Senate.