Triangle Derby I in Osaka ~ Day 1 was a professional wrestling event promoted by World Wonder Ring Stardom, held on January 14, 2023, at EDION Arena Osaka No.2 in Osaka, Japan. It was the fifth event for the first-ever Triangle Derby, a round-robin six-woman tag team tournament created by the company.

Stardom Triangle Derby I in Osaka ~ Day 1 is available to track and rate on skipintro.