ONE 173: Superbon vs. Noiri was a combat sports event produced by ONE Championship that took place on November 16, 2025, at the Ariake Arena in Tokyo, Japan. A ONE Featherweight Kickboxing World Championship unification bout between current two-time champion Superbon Singha Mawynn and interim champion (also a former K-1 Super Lightweight and Welterweight Champion) Masaaki Noiri headlined the event.