Who became the first UFC fighter to win titles in two weight classes?

Randy Couture became the first UFC fighter to win titles in two weight classes.

Couture won the UFC heavyweight championship at UFC 15 in 1997 by defeating Maurice Smith. He later moved down to light heavyweight and defeated Chuck Liddell at UFC 43 in 2004 to capture that division’s interim title, completing his two-division championship achievement.

The distinction is about winning UFC titles in separate divisions, not holding two belts simultaneously. Couture became a heavyweight champion multiple times and also won the light heavyweight championship, demonstrating unusual success across weight categories.

Other fighters later won UFC championships in two divisions, including B.J. Penn, Georges St-Pierre, Conor McGregor, and Daniel Cormier. McGregor became the first fighter to hold two UFC belts simultaneously, which is a related but different record.