UFC Fight Night 129: Maia vs. Usman was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on May 19, 2018, at Movistar Arena in Santiago, Chile. A welterweight bout between Kamaru Usman and Demian Maia served as the event headliner.

• Zuffa
• Kamaru Usman
• Demian Maia
• Tatiana Suarez
• Alexa Grasso
• Dominick Reyes
• Jared Cannonier
• Guido Cannetti
• Diego Rivas