2023 in Bellator MMA was the fifteenth year in the history of Bellator MMA, a mixed martial arts promotion based in the United States.
On September 28, 2022, Bellator president Scott Coker revealed in a The MMA Hour interview that a Lightweight World Grand Prix will take place in 2023. On January 11, 2023, during an appearance on "The MMA Hour," Bellator president Scott Coker revealed the fighters taking part in the tournament. The lineup includes Usman Nurmagomedov, A.J. McKee, Tofiq Musayev, Alexandr Shabliy, Patricky Freire, Mansour Barnaoui, Benson Henderson, and Sidney Outlaw. The tournament kicked off at Bellator 292 on March 10 in San Jose, California.