ONE Fight Night 46: Hemetsberger vs. Diachkova

ONE Fight Night 46: Hemetsberger vs. Diachkova was a combat sports event produced by ONE Championship that took place on August 15, 2026, at Lumpinee Boxing Stadium in Bangkok, Thailand. A ONE Women's Strawweight Muay Thai World Championship bout between current champion (also current ONE Women's Strawweight Kickboxing World Champion) Stella Hemetsberger and Natalia Diachkova headlined the event.

ONE Fight Night 46: Hemetsberger vs. Diachkova was released on August 14, 2026.

The cast of ONE Fight Night 46: Hemetsberger vs. Diachkova includes Stella Hemetsberger (Self), Natalia Diachkova (Self), Nico Carrillo (Self), Zhou Jiaqiang (Self) and Marcus Aurelio (Self).