There have been plenty of big names in MMA, but very few have felt unavoidable. Conor McGregor was one of those. At one point, it didn’t matter if you followed the UFC or not, you knew who he was. That alone says a lot.
He didn’t arrive as a finished product either. The early fights built momentum, but it was everything around them that pushed him to another level. Press conferences turned into must–watch clips, interviews spread everywhere, and every fight felt like a bigger deal than the last. People tuned in not just to see if he would win, but to see what would happen.
What makes Conor McGregor’s numbers stand out
The numbers back it up. His fight with Khabib Nurmagomedov at UFC 229 is still the biggest pay-per-view in the promotion’s history, sitting at around 2.4 million buys. That kind of figure hasn’t really been touched since.
And it wasn’t a one-time spike. Fights against Nate Diaz, Dustin Poirier, Eddie Alvarez, and Donald Cerrone all pulled in over a million buys. That level of consistency is rare. Most fighters might hit that mark once. Conor McGregor did it again and again.
Joe Rogan says Conor McGregor is the greatest personality the sport has ever known 💥🔥
"It’s the greatest personality the sport has ever known. There’s no one even close. He’s the most dynamic personality the sport has ever known."#UFC #MMA @TheNotoriousMMA pic.twitter.com/aa1qavVHZq
— FREAK.MMA (@FREAKMMA1) March 26, 2026
Read More
Even looking at the bigger picture, his name shows up across most of the UFC’s top-selling events. When he was on the card, numbers went up. When he wasn’t, things usually dropped back down. It’s a pretty clear pattern.
But it wasn’t just about sales. He changed how fighters approached the sport. Before him, winning was everything. After him, personality started to matter just as much. Fighters began to think about how they spoke, how they carried themselves, how they could stand out.
He also brought new eyes to the sport. The boxing match with Floyd Mayweather wasn’t just a crossover, it was a moment that pulled MMA into a completely different audience. For a lot of people, that was their first real exposure to a UFC fighter.
There are other names worth mentioning. Ronda Rousey had a huge run and helped push women’s MMA forward. Brock Lesnar brought in a different kind of audience from the start. But neither managed to combine attention, numbers, and consistency in quite the same way.
So when the question comes up, it’s not just about who was popular. It’s about who changed the scale of popularity. And on that front, Conor McGregor still stands on his own.
Also Read: Tyson Fury: Beating Depression, Addiction, and the Best in the World
