Glen Powell might officially be off the market, ladies … he was spotted getting cozy on the dance floor with actress Michelle Randolph — and the sparks between them were intense!

Check out the clip taken by an onlooker this weekend … the Hollywood hunk was on the dance floor at The Broken Spoke in Austin, Texas with the blonde bombshell, mixing in with the other couples … and he was locked in, swaying side to side with her and tossing a few very intimate glances her way.

It’s unclear whether it was a professional or personal hang or not at — but what we do know … a source tells TMZ Glen actually brought Michelle to his “Chad Powers” premiere party a couple months back.

It comes after Glen’s breakup with model Gigi Paris — a split that unraveled smack in the middle of all those rumors with Sydney Sweeney … which ended up being nothing more than a very committed PR push for their movie, “Anyone But You.”