Choi Jung-in (최정인), also known mononymously as Jung-in, is a South Korean singer of Jungle Entertainment. She debuted in Leessang's "Rush" and was once part of the five-member group G.Fla until disbanding after three years. Her first album From Andromeda was released on March 11, 2010.
- Birthplace: Daejeon, South Korea
- Spouse: Jo Jung Chi