Jason Von Flue (born August 1, 1975) is an American former mixed martial artist who appeared on the second season of The Ultimate Fighter.

Over the next six years, he amassed a record of 10 wins, 4 losses and 1 draw while fighting for promotions such as King of the Cage and World Extreme Cagefighting in his native California.

[6] In his second UFC match at Ultimate Fight Night 4, he was defeated by fellow TUF 2 contestant Luke Cummo via decision.

In his last fight in mixed martial arts, Von Flue faced Marcus Gaines at TWC: Trauma on July 23, 2009.

[10] Von Flue was scheduled to return from a near five-year retirement and face Conor Cooke at Cage Contender 18 on April 26, 2014,[11] however the bout would be cancelled prior to the event for unknown reasons.