Stardom 15th Anniversary Series ~ New Year Stars 2026 in Korakuen ~ Day 1 was a professional wrestling event promoted by World Wonder Ring Stardom, held on January 10, 2026 at Korakuen Hall in Tokyo, Japan. It was main evented by H.A.T.E.'s BMI2000 (Natsuko Tora and Ruaka) defending the Goddesses of Stardom Championship against Neo Genesis' 02line (AZM and Miyu Amasaki).