Nickname(s): "The Death God", "The Grim Reaper", "The Executioner"
Gender: Male
Birth Date: June 30, 1971
Homeland: Japan Tokyo, Japan
Family: Kumi Mashiba (Younger Sister)
Height: 177 cm
Bloodtype: A
Occupation: Professional Boxer, Truck Driver
Current Weight Class: Lightweight
Previous Weight Class(es): Featherweight, Junior Lightweight
Reach: 187 cm (74")
Style(s): Unorthodox Style
Stance(s): Barrier Style, Hitman Style, Orthodox Style
Current Affiliation: Toho Boxing Gym
Current Trainer: Toho Coach

Mashiba Ryo is a fictional character from the anime and manga series Hajime No Ippo, and Fighting Spirit . He is one of the darker characters in the series, but has shown his lighter and good natured side from time to time. He lives with his sister, Kumi Mashiba, whom he is very protective of. Their parents are deceased, having died in an accident when Mashiba was in school. He is well known for his hitman style of boxing that utilizes one of his specialties, the flicker jab; both of which appear to be modeled after Thomas Hearns. His other specialty is a close range chopping right.