Jason Lee "Live Wire" Von Flue (born August 1 , 1975 in Fresno, California) is a mixed martial artist most notable for appearing on the second season of The Ultimate Fighter , a reality television series produced by the Ultimate Fighting Championship and broadcast on Spike TV.

On episode three of the show, fighter Josh Burkman was injured and Jason came to team Hughes as a replacement fighter. Considered the underdog, he went on to get an upset win in his first fight against Jorge Gurgel. Despite his performance, he was given to team Franklin when Hughes was forced to give up one of his members to the other team. He faced former teammate Joe Stevenson in the semifinals, losing due to an armbar submission. After his performance on the show, he was signed to a UFC contract.

In his first match since the show, at Ultimate Fight Night 3 he defeated season one The Ultimate Fighter contestant Alex Karalexis via technical submission, as Karalexis was rendered unconcious by a shoulder choke from side control, a technique now commonly reffered to as a "Von Flue choke." In his second UFC match at Ultimate Fight Night 4, he was defeated by fellow TUF 2 contestant Luke Cummo via decision. More recently, Von Flue lost by submission to Joe Riggs at UFC Fight Night. Following a win over Eric Wray in October, Von Flue's lost to Cung Le due to a cut at Strikeforce: Triple Threat on December 8, 2006. Von Flue's last lose was to Pete Spratt who he has recently defeated by knockout.