The 2004 Pioneer PureVision Las Vegas Bowl was a post–season American college football bowl game, held on December 23, 2004, at Sam Boyd Stadium on the campus of the University of Nevada, Las Vegas, as a part of 2004–05 NCAA Bowl season. It was the 13th edition of the Las Vegas Bowl. The game featured the Wyoming Cowboys from the Mountain West Conference and the UCLA Bruins from the Pac-10 Conference. The game marked the first meeting between the two programs.