5★STAR Grand Prix 2022 in Hamamatsu was a professional wrestling event promoted by World Wonder Ring Stardom, held on August 28, 2022 at Act City Hamamatsu in Hamamatsu, Shizuoka, Japan. It served as the tenth show for the company's annual round-robin singles tournament and included nine matches from the field of 26 competitors, main evented by the "Icon of Stardom" and SWA Undisputed Women's World Champion Mayu Iwatani facing relative Stardom newcomer Ami Sohrei in Blue Stars block action.