Mayu Iwatani

Mayu Iwatani (岩谷 麻由, Iwatani Mayu; ring name: 岩谷 麻優) (born February 19, 1993) is a Japanese professional wrestler, currently signed to Dream Star Fighting Marigold, where she is the current Marigold Super Fly Champion in her first reign. She is best known for her tenure with World Wonder Ring Stardom, where she was the leader of Stars. She also wrestled for New Japan Pro Wrestling, where she is a former IWGP Women's Champion, which was the longest reign in the title's history.

Since making her debut in January 2011, she became a two-time World of Stardom Champion, two-time Wonder of Stardom Champion, one-time High Speed Champion, one-time SWA World Champion, two-time Goddesses of Stardom Champion, and a five-time Artist of Stardom Champion, while also having won the Cinderella Tournament back to back in 2015 and 2016, and the 2018 5Star Grand Prix. She also made appearances for Stardom's American partner Ring of Honor, where she is a former one-time Women of Honor World Champion.

Dave Meltzer of the Wrestling Observer Newsletter has called Iwatani and fellow Japanese workers Io Shirai and Kairi Hojo "three of the best wrestlers in the world". She was also recognized as the "ace" of Stardom.