AAAW Single Championship

The AAAW (All Asia Athlete Women's) Single Championship or AAAW Championship is a women's professional wrestling championship formerly contested in the Japanese women's professional wrestling promotion Gaea Japan until 2005 after the promotion was closed down. Originally a heavyweight championship, the weight class was dropped in 1998, making it an openweight title. On March 12, 2021 it was announced that the AAAW Singles Championship would be revived, along with the AAAW Tag Team Championship, at the GAEAISM show on April 29. It was revived in January 2022 and began being sanctioned by Marvelous That's Women Pro Wrestling ever since.

Title history
On November 2, 1996, Chigusa Nagayo became the inaugural AAAW Heavyweight Champion after defeating Devil Masami. On May 1998, during Devil Masami's reign, the title was re-named as the AAAW Single Championship. The title remained active until the closing of Gaea Japan on April 10, 2005. On January 10, 2022, the title reactivated under Marvelous That's Women Pro Wrestling, where Takumi Iroha won it by defeating Chihiro Hashimoto. On November 4, Iroha vacated title after sustaining an injury.

On December 4, Nagashima won the vacant championship by defeating Mio Momono, making her the first person to hold the title both on Gaea and Marvelous.

Reigns
As of July 29, 2024, there have been 17 reigns shared between eleven different champions and one vacancy. Chigusa Nagayo was the inaugural champion. Aja Kong holds the record for most reigns at three. Kong's first reign is the longest at 607 days, while her third being the shortest at seven days. Chikayo Nagashima is the oldest champion at 46 years old, while Meiko Satomura is the youngest champion at 22 years old.

Mayumi Ozaki is the current champion in her second reign. She won the title by defeating Mio Momono at a Marvelous show on August 7, 2023, in Tokyo, Japan.

Combined reigns
As of July 29, 2024.