James M. Baker may refer to:
James M. Baker (mayor) (born 1942), mayor of Wilmington, Delaware from 2001 to 2013 James M. Baker (Virginia politician) (1845–1927), member of the Virginia House of Delegates James Marion Baker (1861–1940), 11th Secretary of the United States Senate James McNair Baker (1821–1892), American jurist and politician in the Confederate Senate during Civil War James Mitchell Baker (1878–1956), South African Olympic runner