UFC's Paige VanZant Engaged to MMA Fighter Austin Vanderford

Paige VanZant just got engaged to her MMA fighter boyfriend ... and her last name ain't gonna change all that much.

The UFC figther posted a photo Sunday of her guy, Austin Vanderford, getting on one knee to propose, with the caption ... "I said yes!!!"

The couple's been going out since at least this past summer, when she posted a photo of the two of them together in August with the caption "Mine."

Mine, indeed. Congrats to the future VanZant-derfords!