Lee Hong-bin (Korean: 이홍빈; born September 29, 1993), also known by the mononym Hongbin, is a South Korean Twitch streamer, former singer, rapper, actor and presenter formerly signed under Jellyfish Entertainment. He debuted as a member of the South Korean boy group VIXX in May 2012, and began his acting career in 2014 in SBS' romantic drama Glorious Day as Yoo Ji-ho. He has since had a leading role in KBS2's fantasy action-romance Moorim School: Saga of the Brave (2016) as Wang Chi-ang. In 2017, Hongbin played Yoon Jae-won in the SBS Plus rom-com mini-drama Wednesday 3:30 PM. He officially left VIXX in August 2020.