Conor Anthony McGregor is an Irish professional mixed martial artist and boxer.
- McGregor is the Ultimate Fighting Championship (UFC) lightweight champion and former featherweight champion.
- McGregor has also competed as a welterweight in mixed martial arts (MMA), and light middleweight in boxing
- He began his professional boxing career in 2017. In his debut boxing match, he was defeated by Floyd Mayweather Jr. via technical knockout.