Kofi Kingston ain't ruling it out ... telling TMZ Sports he'd love to see the UFC star get involved in pro wrestling -- but he's gotta see Jon's hip-shaking ability before bringing him into the group!!!

Check this out ... Kofi says he actually met Jon recently and admitted he was straight-up starstruck -- "He's one of the greatest of all time man!"

"It was a real honor meeting him ... real cool."

And, with former UFC star like Brock Lesnar and Ronda Rousey killling it in the WWE, Kofi thinks Jon could be the next great crossover.

"He's definitely got the height, he's got the skill," Kofi says. "From what I see he's got the right attitude."

"I think a lot of people would love to see Jon Jones in there."

Of course, before Jon can even consider a wrestling career, he's gotta get through Thiago Santos at UFC 239 in Vegas on Saturday night.