ONE Fight Night 17: Kryklia vs. Roberts was a Muay Thai event produced by ONE Championship that took place on December 9, 2023, at Lumpinee Boxing Stadium in Bangkok, Thailand. An inaugural ONE Heavyweight Muay Thai World Championship bout between the ONE Light Heavyweight Kickboxing World Champion (also the 2022 ONE Heavyweight Kickboxing World Grand Prix winner) Roman Kryklia and Alex Roberts headlined the event.