Mauricio Aceves (born 18 December 1960) is a Mexican former professional boxer in the Light welterweight division.
Mauricio has fought many undefeated boxers, including Shane Mosley, Dingaan Thobela, Todd Foster, Dennis Holbæk Pedersen, Billy Schwer and Rene Arredondo.
Aceves won the WBO Lightweight Championship by upsetting the veteran Amancio Castro in Santa Ana, California.
He almost lost his championship in his first defense, when his opponent Oscar Bejines had won every round before being knocked out with a single short left hook by Mauricio.
[1] One of his last fights was a loss to boxing legend Jorge Páez.