Frank Bois (September 13, 1841 – January 25, 1920) was an Canadian sailor who fought in the American Civil War. He received the U.S. military's highest decoration, the Medal of Honor, for his actions during the Siege of Vicksburg on May 27, 1863, while serving as Quartermaster aboard the USS Cincinnati. Bois died on January 25, 1920 and is buried in Orting, Washington.