Robert Earl "Kool" Bell (born October 8, 1950), also known by his Muslim name Muhammad Bayyan, is an American musician, singer & songwriter. He is one of the founding members of the American R&B, soul, funk and disco band Kool & the Gang.

Bell was born in Youngstown, Ohio, to Aminah Bayyan (1932–2014) and Robert "Bobby" Bell (1929–1985). Bell grew up in Jersey City, New Jersey. Growing up, Bell was nicknamed "Kool", due to being "laid back": That's a nickname from the neighborhood I grew up in here in Jersey City.