George Andrew Stewart (September 26, 1862 – June 21, 1894) was an American football coach. He served as the head coach of the Harvard University football team from 1890 to 1893. From 1890 to 1892, he co-coached with George C. Adams, and in 1893, with Everett J. Lake.

Born in 1862 in South Boston,^[1] Stewart attended grammar and Latin schools in Boston^[1] before entering Harvard in 1880, graduating in the class of 1884.^[2] After graduating, in 1886,^[3] Stewart worked at the Boston Daily Globe, editing the yachting section. He was regarded as an authority on boating and yachts, and was a member of a yacht club and the Boston Athletic Association.^[1] He was regarded as a designer of boats.^[4] In 1890, Stewart, along with another fellow alumnus, George Adams (1886) were appointed by team captain Arthur Cumnock^[5] as coaches for the Harvard football program. In their first season, the 1890 Harvard team went 11–0 had five players named to the 1890 College Football All-America Team.^[6] The team was retroactively recognized as a national champion by a number of selectors. The appointment of Adams and Stewart is regarded to be the beginning of an organized coaching system at Harvard.^[7]

Stewart died of typhoid fever in 1894.^[1]