Matsuo Hasumi

 (松尾羽純) is a former talento, former Japanese idol and a former member of All nighters and its subgroup Okawari Sisters.

She joined All Night Fuji in 1983, and joined the idol sub-unit Okawari Sisters on February 21st, 1984. She stayed until it disbanded on March 31st, 1985.

After breakup she retired and began working an office job at her old record company, For Life Music. She later married the company's president in 1988.