Conor McGregor unloaded vicious punches on a club patron in Ibiza this week … with video showing the former UFC superstar striking a man twice during the violent altercation.

In a clip obtained by The Sun, Notorious appeared to be enjoying a night out with friends at Pacha around 5:53 AM on Tuesday … when at one point, he leaned in and communicated with someone standing below him.

Whatever was said apparently didn’t sit well with the 36-year-old fighter … ‘cause he went into MMA mode and attacked the guy with two clean left hooks.

The patron lost balance and fell back … but the footage cuts out shortly afterward.

According to the outlet, McGregor’s night wasn’t entirely disrupted over the incident … as he was allowed to keep doing his thing, while the patron was kicked out of the venue.

This is par for the course for McGregor — he’s no stranger to trouble … but it’s unclear if he’ll face any legal consequences for this incident.

McGregor hasn’t fought in the Octagon since his loss to Dustin Poirier in July 2021.