George Green Foster (January 21, 1860 – May 1, 1931) was a Canadian lawyer and politician.

Born in Knowlton, Canada East, the son of Samuel E. Foster and Ellen Green, Foster was educated at Knowlton Academy and McGill University (B.C.L., 1881).

His son George Buchanan Foster was a World War I flying ace.

Foster was the Conservative candidate in Brome in the 1896 federal election but was defeated by Liberal Sydney A. Fisher.

He was summoned to the Senate of Canada in 1917 on the advice of Conservative Prime Minister Sir Robert Borden and served until his death in 1931.