General Day

General Day may refer to:


 * Allan Day (fl. 1980s–2020s), U.S. Air Force major general
 * Hannibal Day (1804–1891), U.S. Army brigadier general
 * James L. Day (1925–1998), U.S. Marine Corps major general
 * Karl S. Day (1896–1973), U.S. Marine Corps lieutenant general