who is the ufc lightweight champion

The current UFC lightweight champion is Ilia Topuria.

He won the vacant 155 lb title on June 28, 2025, by first-round knockout over Charles Oliveira at UFC 317. As of late December 2025 (the most recent official update available), he is still listed as the reigning lightweight champion with his next title defense yet to be announced.

Information gathered from public forums or data available on the internet and portrayed here.