Roy Owen Haynes (born March 13, 1925 Boston) is an American jazz drummer and group leader. Haynes is among the most recorded drummers in jazz, and in a career lasting more than 70 years has played in a wide range of styles ranging from swing and bebop to jazz fusion and avant-garde jazz. He has a highly expressive, personal style (“Snap Crackle” was a nickname given him in the 1950s) and is known to foster a deep engagement in his bandmates.^{[citation needed]}

He has also led his own groups, some performing under the name Hip Ensemble. His most recent recordings as a leader are Fountain of Youth and Whereas, both of which have been nominated for a Grammy Award. He continues to perform worldwide and was inducted into the Modern Drummer Hall of Fame in 1999. His son Graham Haynes is a cornetist; his son Craig Haynes and grandson Marcus Gilmore are both drummers.