AEW x NJPW x CMLL x Stardom Present Forbidden Door 2026: The 2026 Forbidden Door was a professional wrestling pay-per-view (PPV) event and supershow co-produced by the American promotion All Elite Wrestling (AEW), Mexican promotion Consejo Mundial de Lucha Libre (CMLL) and the Japanese promotions New Japan Pro-Wrestling (NJPW) and World Wonder Ring Stardom (Stardom). It was the fifth annual Forbidden Door event and took place on June 28, 2026 at SAP Center at San Jose in San Jose, California, USA.