Akira Santillan (サンティラン アキラ Santillan Akira, born 22 May 1997) is an Australian–Japanese tennis player. Santillan was born in Tokyo to a Japanese mother and a South African father. The family moved to Brisbane, where he became an Australian citizen. However, in March 2015, Santillan opted to play under the Japanese flag instead due to a fractious relationship with Tennis Australia. Santillan will make his ATP main draw debut at the 2016 Generali Open Kitzbühel, receiving singles and doubles main draw wildcards.