Hasegawa Aki

 (長谷川あき) is a Japanese idol, a member of SAY-LA, a former member of BABY TO KISS, a former producer and founding member of & Scinfinity and Jitsuwa, Shinchireshon, and a former member of Meiai Help!.

She joined Meiai Help! in September 2018 and left in April 2019.

She was a member of Jitsuwa, Shinchireshon until the group disbanded on March 8, 2020.

She was a member of & Scinfinity until the group disbanded on June 11, 2023.

On June 18, 2023, she announced that she would join the idol agency I-GET. She joined BABY TO KISS on June 26, 2023 and was promoted to SAY-LA on July 12, 2023.