Sidney “Big Sid” Catlett (January 17, 1910 – March 25, 1951) was an American jazz drummer. Catlett was one of the most versatile drummers of his era, adapting with the changing music scene as bebop emerged.

Catlett was born in Evansville, Indiana, United States, and at an early age he was instructed in the rudiments of piano and drums, under the tutelage of a music teacher hired by his mother. When he and his family relocated to Chicago, Catlett received his first drum kit, and immersed himself in the diverse styles and techniques of Zutty Singleton, Warren “Baby” Dodds, and Jimmy Bertrand, among others.