José Ángel Nápoles, nicknamed Mantequilla ("Butter", referring to his smooth boxing style), (April 13, 1940 – August 16, 2019) was a Cuban-born Mexican boxer and a World Welterweight Champion. He is frequently ranked as one of the greatest fighters of all time in that division and is a member of the International Boxing Hall of Fame. His record of the most wins in unified championship bouts in boxing history, shared with Muhammad Ali, was unbeaten for 40 years. After debuting professionally in Cuba, he fought out of Mexico and became a Mexican citizen.
He is also known as Jose Napoles.