Moon Bin (문빈) is a South Korean singer and actor under Fantagio Entertainment. He is a member of the Korean pop boy group ASTRO.
- Name: Moon Bin (문빈)
- Birthdate: January 26, 1999
- Nickname: U-Know MoonBin (유노문빈), Binnie (빈이), Sleepyhead
- Blood Type: B
- Height: 180cm
- Weight: 64kg
- Specialty: Piano, acting, Dance, Acting, Water Sport
- Hanlim Multi Arts High School (Graduated)
-  Boys Before Flowers (as young So Yi-jung)
-  Perseverance Goo Hae Ra (Cameo)
-  To Be Continued (Web Drama)
-  Idol Fever
- His childhood best friends are iKON's Chan Woo and SF9's Cha Ni. He and Chan Woo share the same birthday. His younger sister is YG trainee Moon Sua.