Momo Hayashi

is a Japanese professional footballer who plays as a midfielder for A-League Women club Brisbane Roar.

Career Hayashi played for Japanese side Speranza Osaka. Following her stint there, she signed for Japanese side Okayama Yunogo Belle. Subsequently, she signed for Australian side Gold Coast United in 2019, where she was regarded as one of the club's most important players. Ahead of the 2024–25 season, she signed for Australian side Brisbane Roar.

Style of play Hayashi plays as a midfielder. Australian newspaper Nichigo Press wrote in 2023 that "even though she is not particularly tall, she is able to play physically in a league that demands strength because of her low center of gravity that makes her strong enough not to be outmuscled, and her skill in reading the flow of the opponent's attack. Her versatility, as she can play in more attacking positions when needed, is also one of her strengths".