Five ships of the United States Navy have been named USS Idaho in honor of the 43rd state.
was a wooden steam sloop later converted to a full-rigged sailing ship , a , was launched on 9 December 1905 and was sold to Greece on 30 July 1914 was a motor boat acquired by the US Navy in June 1917 and returned to her owner 30 November 1918 was a launched on 30 June 1917, saw action in World War II, and was sold for scrap 24 November 1947 is a Virginia-class submarine commissioned in April 2026
See also , an auxiliary launched in 1965 and in ready reserve since 1984.