Jacob Gill Gaudaur, Jr., was a Canadian Football League (CFL) player, executive, and commissioner. His 45-year career in Canadian football, including 16 years as the league's fourth commissioner, oversaw the start of the modern era of professional Canadian football. As an amateur artist, Gaudaur made two important contributions, designing both the Hamilton Tiger-Cats "Leaping Tiger" logo, as well as an early version of the CFL logo. With Ralph Sazio, he co-wrote "The Tiger-Cat Marching Song", the fight song of the Tiger-Cats.