Yasuko Tamada (玉田 育子, tamada yasuko, born June 30, 1967) is a Japanese female mixed martial arts (MMA) fighter. She previously fought as a flyweight in the Valkyrie promotion and was the only Valkyrie Flyweight Champion. She later fought for Jewels and last competed for Deep. Tamada was once ranked as the #6 female atomweight (96-106 lb) fighter in the world according to the Unified Women's Mixed Martial Arts Rankings.