The incident resulted in two felonies filed against McGregor, who ultimately pleaded guilty to a disorderly conduct count last month that kept him out of jail.
The announcement was made at a UFC news conference to reveal fight cards running through the end of the year, including the November 3 co-main event between McGregor's heated lightweight rival Nate Diaz and gritty Dustin Poirier.
McGregor first laid the groundwork for his fight against Nurmagomedov back in April when he attacked a bus full of UFC fighters, including the Lightweight champ, at Barclays Center in Brooklyn.
Negotiations for this bout dragged on for many weeks while McGregor argued a highly lucrative deal, even demanding an ownership stake in the UFC in exchange for returning to the cage, and Nurmagomedov also asked for a hefty raise.
The UFC did not disclose the terms of the fight agreement.
That would be Nate Diaz, whose own return after a two-year hiatus from MMA was also announced during the UFC 25th Anniversary Press Conference.
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McGregor's return to UFC after his boxing match with Floyd Mayweather and meltdown in New York City was always going to bring drama, but Friday might have somehow surpassed expectations.
"I'd love to fight in the [Madison Square] Garden but I believe this one will be in Las Vegas".
McGregor has been absent from the sport for two years. He blamed an unspecified lawsuit as a reason he was gone from the UFC for so long.
UFC president Dana White will be in attendance as well as over a dozen fighters competing on future cards.
McGregor and Nurmagomedov will meet in the main event of the UFC 229 pay-per-view show at T-Mobile Arena, the same spot where Mayweather stopped McGregor in the 10th round of their one-sided fight.