Wrestle Kingdom 20 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on January 4, 2026, at the Tokyo Dome in Tokyo, Japan, featuring the official retirement match of Hiroshi Tanahashi versus his long-time rival Kazuchika Okada and a dual title match between IWGP World Heavyweight Champion Konosuke Takeshita and IWGP Global Heavyweight Champion Yota Tsuji.