George Barnard Baker (January 29, 1834 – February 9, 1910) was a Quebec lawyer and political figure. He was a Liberal-Conservative member of the House of Commons of Canada representing Missisquoi from 1870 to 1874, from 1879 to 1887 and from 1891 to 1896 and in the Legislative Assembly of Quebec from 1875 to 1878. He was named to the Senate of Canada for Bedford division in 1896 and served until his death in 1910. He died in Montreal in 1910. His son George Harold was also a member of the House of Commons.