Seo Ji-hoon or Seo Ji-hun (Korean: 서지훈; RR: Seo Ji-hun; MR: Sŏ Chihun) is a Korean name consisting of the family name Seo and the masculine given name Ji-hoon, and may refer to: Seo Ji-hun (video game player) (born 1985), South Korean video game player Seo Ji-hoon (actor) (born 1997), South Korean actor