ONE Friday Fights 158: Maisangkum vs. Petnamkhong was a combat sports event produced by ONE Championship that took place on June 12, 2026, at Lumpinee Boxing Stadium in Bangkok, Thailand. A strawweight Muay Thai bout between Maisangkum Sor.Yingcharoenkarnchang and Petnamkhong Sor.Maneekhot headlined the event.