One-Punch Man is een Japanse animeserie van de zender TV Tokyo. De serie ging in première op 5 oktober 2015.
One Punch Man gaat over de doodnormale jongeman Saitama, die na jaren van training nu als de super krachtige, kale superheld One Punch Man door het leven gaat.
A story set sometime between Mosquito Girl’s defeat and Genos showing up to Saitama’s apartment. Genos wants to learn the secret to Saitama’s power and decides to follow him and to observe everything he does. At the same time, Saitama is convinced that someone is stalking him.