Kōshien (甲子園) often refers to: Koshien Stadium, a baseball stadium in Koshien which is the venue of the annual high school baseball tournaments Kōshien baseball tournaments, two annual baseball tournaments played by Japanese high schools nationwide Koshien, Nishinomiya, Hyōgo Prefecture, a neighborhood of Nishinomiya, Hyōgo, Japan named after the stadium

Kōshien may also refer to:

Places Kōshien Station on the Hanshin Main Line in Nishinomiya, Hyōgo, named after the baseball stadium Kōshien Hotel in Nishinomiya, Hyōgo, now part of Mukogawa Women's University

Sport Kōshien baseball tournaments, high school tournaments generally referred to as Kōshien Japanese High School Baseball Championship, commonly called Summer Kōshien Japanese High School Baseball Invitational Tournament, commonly called Spring Kōshien Kōshien (series), Japan-exclusive high school baseball-themed video games released for various systems Koshien Bowl, an American football championship held in Koshien Stadium

Education Koshien Junior College in Nishinomiya, Hyōgo Koshien University in Takarazuka, Hyōgo