The Conversion 2026 was a professional wrestling event promoted by World Wonder Ring Stardom, held on June 20, 2026 at Yoyogi National Gymnasium No. 2 in Tokyo, Japan. In the main event, Sayaka Kurara defended the World of Stardom Championship against Suzu Suzuki, who won a #1 contendership match at the company's previous arena show, Queens Dynasty. Other marquee matches include Wonder of Stardom Champion Hanan defending the white belt against her wing☆gori tag team partner Saya Iida, and the first IWGP Women's Championship match after Bushiroad announced the transfer of New Japan Pro-Wrestling (NJPW) to TV Asahi and CyberAgent, fought between champion Syuri and notable freelancer Rina Yamashita.