William Miller "Big Bill" Gatewood (August 22, 1881 – December 8, 1962) was an American Negro league baseball pitcher and manager for several years before the founding of the first Negro National League, and in its first few seasons.

"[17] In the first week of June in 1920,[18] at age 38, Gatewood left the St. Louis Giants and joined Tenny Blount's team, the Detroit Stars.

He is credited with giving Negro leagues great James Cool Papa Bell his famous nickname,[19] and for convincing him to learn to switch hit in order to take advantage of his speed.

Gatewood is also credited with teaching Satchel Paige his "hesitation pitch" while managing him in Birmingham.

After Gatewood died, he was buried in an unmarked grave and did not receive a proper headstone until a Society for American Baseball Research group called the Negro Leagues Baseball Grave Marker Project installed a proper gravestone in 2010.