Yoo Si-ah
Birthday: 9/17/1995
Gender: Female
Place Of Birth: Seoul, South Korea

YooA (유아) is a South Korean singer under WM Entertainment. She is a member of the girl group OH MY GIRL and a former member of the project girl groups Sunny Girls and Girls Next Door. She made solo debut on September 7, 2020 with her first mini album Bon Voyage.