Miss USA 1958, the seventh Miss USA pageant, took place in Long Beach, California on July 23, 1958. The pageant was won by Eurlyne Howell of Louisiana, who was crowned by outgoing titleholder Charlotte Sheffield of Utah. Howell went on to finish as 3rd runner-up to Luz Marina Zuluaga of Colombia at Miss Universe 1958. The 1958 pageant was the last to include a city delegate (Kathleen Conyers of Philadelphia) in the line-up.
The Miss USA 1958 delegates were: