Brandon W.K. Wolff (born October 18, 1975) is an American mixed martial artist and former Navy SEAL. He has a twin brother, Brenton, who has followed the same path. He made his Ultimate Fighting Championship (UFC) debut in 2008 at UFC: Fight for the Troops, where he suffered a technical knockout loss to Ben Saunders after a series of knees. He last faced Yoshiyuki Yoshida at UFC 98, where he lost via guillotine choke in the 1st round. After his fight with Yoshida, he was released from the UFC. Wolff was scheduled to face Thomas "Wildman" Denny at Call To Arms 2, but had to pull out due to injury. Joe Cronin replaced him.