Miss USA 2009 was the 58th Miss USA pageant, held at the Planet Hollywood Theatre for the Performing Arts in Las Vegas, Nevada on April 19, 2009. At the conclusion of the final night of competition, Kristen Dalton of North Carolina was crowned by outgoing titleholder Crystle Stewart of Texas.

Kristen Jeannine Dalton-Wolfe is an American actress, model and beauty pageant titleholder who won Miss USA 2009 and represented the United States at the Miss Universe 2009 pageant.