Johnnie Otis Jackson (born January 30, 1971 in Hammonton, New Jersey) is an American IFBB professional bodybuilder and powerlifter. Jackson has been said to have one of the best developed upper bodies in professional bodybuilding in the world. He is known for training in Arlington, Texas, with fellow American IFBB pro competitor Branch Warren. Due to his strength, he has sometimes been referred to (especially in 2009) as the world's strongest bodybuilder.