Granville William “Mickey” Roker (September 3, 1932 – May 22, 2017) was an American jazz drummer.

Roker was born into extreme poverty in Miami to Granville (Sr.) and Willie Mae Roker. After his mother died (his father never lived with them), when he was only ten, he was taken by his grandmother to live in Philadelphia with his uncle Walter, who gave him his first drum kit and communicated his love of jazz to his nephew. He also introduced the young Roker to the jazz scene in Philadelphia, where drummer Philly Joe Jones became Roker’s idol. While in Philadelphia he played with Jimmy Oliver, Jimmy Heath, Jimmy Divine, King James and Sam Reed before moving to New York in 1959, where his first gigs were with Gigi Gryce, Ray Bryant, Joe Williams, Junior Mance, Nancy Wilson and the Duke Pearson big band.