Tomoa Narasaki (楢﨑 智亜 Narasaki Tomoa, born June 22, 1996) is a Japanese professional sport climber and boulderer. He started climbing at age 10, together with Sachi Amma, in Sachi's family climbing gym. Previously, he had been training apparatus gymnastics. In 2016 and 2019, he won both the Bouldering World Championship and the overall title at the Bouldering World Cup. His younger brother Meichi Narasaki is also a prominent professional climber.