William Emanuel "Billy" Cobham (born May 16, 1944) is a Panamanian American jazz drummer, composer and bandleader, who permanently relocated to Switzerland during the late 1970s.
Cobham came to prominence in the late 1960s and early 1970s with trumpeter Miles Davis and then with Mahavishnu Orchestra, and on countless CTI releases. According to AllMusic's reviewer, Cobham is "generally acclaimed as fusion's greatest drummer". He has an influential style that combines explosive power and exacting precision. He was inducted into the Modern Drummer Hall of Fame in 1987.