Sawa Sasaki (佐々木 咲和, Sasaki Sawa, born February 22, 1992) is a Japanese AV actress from Ibaraki Prefecture who is affiliated with HANAYA PROJECT. Her height is 163cm and her body measurements are bust 88cm (E cup), waist 60cm and hips 90cm. Her height type is short. She has blood type O.

She made her AV debut in July 2012 under the name Mika Osaki (大崎美佳, Ōsaki Mika) and was affiliated with Marks Japan. She retired on December 31, 2014. She later confessed that she retired due to her marriage to an industry insider. On November 25, 2018, she started a Twitter account under the name Yui Mayuzumi (黛ユイ, Mayuzumi Yui) and announced that she had resumed her activities under the agency was T-Powers. On March 5, 2021, she moved to Prime Agency and changed her stage name to Sawa Sasaki (佐々木 咲和, Sasaki Sawa). On October 18, 2023, she announced that she had moved to HANAYA PROJECT on X. In February 2024, she participated in the launch of the Association for Considering the Rationalization of the AV Industry. She called for the revision of the AV Appearance Damage Prevention and Relief Act.