Moon Sua
- Birthday: 9/9/1999
- Place of birth: Cheongju, South Korea
- Fame for: Acting
- Also known as: Moon Su Ah, Moon Su-ah, 문수아, Billlie
- Social networks: Instagram
Biography
Moon Su-ah is a South Korean rapper and singer managed by MYSTIC Story. She is a member of the girl group Billlie. She is best known for being a former YG Entertainment trainee and a contestant on the competition show Unpretty Rapstar 2.
