ALL OUT! (All Out) is a Japanese manga series by Shiori Amase. It was serialized in Kodansha's manga magazine "Monthly Morning Two" from the first issue in 2013 to the first issue in 2020. It is set in high school rugby in Kanagawa Prefecture. The story follows the main character Kenji Gion, who struggles with his teammates at Kanagawa Prefectural High School, also known as Shinko.