Walter Boutwell Gage (April 21, 1872 – 1949) was an American football player and coach. He was an 1894 graduate of Harvard University. During his collegiate days, he lettered for the Harvard Crimson football team in 1891. Gage served as the head football coach at Albion College in Michigan from 1894 to 1895, compiling a record of 8–2–1.