UFC 226: Miocic vs. Cormier was a mixed martial arts event produced by the Ultimate Fighting Championship held on July 7, 2018, at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas Metropolitan Area.

A UFC Featherweight Championship bout between current champion Max Holloway and Brian Ortega was expected to take place at the event.

[9] Paulo Costa was scheduled to face Uriah Hall at UFC Fight Night: Barboza vs. Lee.

[11] The Ultimate Fighter: Live lightweight winner Michael Chiesa was expected to face former WEC and UFC Lightweight Champion Anthony Pettis at UFC 223, but was pulled from the bout due to multiple cuts from a broken window as a result of the Team SBG bus melee.

[19] ^ Chiesa was fined $11,400, 30 percent of his purse for failing to make the required weight for his fight with Anthony Pettis.