Watch UFC Fight Night 129: Maia vs. Usman (2018) Online
- COUNTRIES: United States of America
- Subtitles: English
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.