Miss USA 2008, the 57th Miss USA beauty pageant, was held in Las Vegas, Nevada on April 11, 2008. At the conclusion of the final night of competition, Crystle Stewart, Miss Texas USA, was crowned the winner by outgoing titleholder, Rachel Smith of Tennessee. The theater was also the location of Miss Universe 1991 and 1996 pageants. This is the first time that the Miss USA pageant was held in Nevada.
For the first time, the competition was broadcast in High Definition.
Brother/sister duo Donny and Marie Osmond hosted the live telecast for the first time, and Finger Eleven performed their single Paralyzer. Rihanna's song Umbrella was used during the evening gown competition.
The top fifteen competed in the swimsuit competition. The top ten delegates from swimsuit competed in evening gown. The top five delegates from the evening gown competition (not averaged composite scores from both competitions) competed in the final question round to determine the winner.