Caio Magalhães is a Brazilian professional mixed martial artist who most recently competed in the Middleweight division of the Professional Fighters League. A professional competitor since 2009, he has also competed for the UFC and M-1 Global.

M-1 Global (Mixfight-1) or MMA-1 is a mixed martial arts promotion based in St. Petersburg, Russia which organizes between 10 and 20 competitions per year.