Stardom 5★STAR Grand Prix 2023 ~Opening Round~ (2023)

5★STAR Grand Prix 2023 ~Opening Round~ was a professional wrestling event promoted by World Wonder Ring Stardom, held on July 23, 2023 at Ota City General Gymnasium in Tokyo, Japan. It served as the first show for the company's annual round-robin singles tournament and included all twenty competitors in block matches.