Luis Ramón "Yori Boy" Campas Medina (born August 6, 1971) is a Mexican former professional boxer who competed from 1987 to 2019. He held the IBF light middleweight title from 1997 to 1998.

He is a native of Navojoa, Sonora, Mexico, where the word Yori means white. When he was young and he walked into a gym for the first time, the way he hit opponents that day impressed his trainers, Chava Mendoza and Gilbert Marquez. He began to be nicknamed Yori Boy, and few actually know his real name is Luis Ramon. He trained in Three Forks, Montana with his manager and trainer Joe Diaz.

Samuel Martinez...............................Fight #42

Roger Turner......................................Fight #43

Felix Trinidad......................................Fight #57

Anthony Jones..................................Fight #63

Jose Luis Lopez................................Fight #66

Raul Marquez.....................................Fight #71

Larry Barnes.......................................Fight #74

Fernando Vargas...............................Fight #75

Oba Carr..............................................Fight #78

Tony Ayala Jr......................................Fight #79

Rob Bleakley.......................................Fight #80

Tony Menefee....................................Fight #81

Oscar De La Hoya.............................Fight #86

John Duddy........................................Fight #97