Seo Eun-kwang
- Birthday: 1990-11-22
- Place of birth: Yongin, Gyeonggi, South Korea
- Also know as: 서은광
Seo Eun-kwang (Hangul: 서은광; born November 22, 1990), also simply known as Eunkwang, is a South Korean singer, entertainer, and the leader and main vocalist of the South Korean boy group BtoB.
