Ralph DeLancey Izard (26 February 1785 – 21 January 1822)[citation needed] was a United States Navy officer who became a hero for his actions at Tripoli, during the Barbary Wars.

Ralph DeLancey Izard was born 26 February 1785 at Charleston, South Carolina, the son of a prominent political family.

Izard volunteered and took part in the expedition under Lieutenant Stephen Decatur, commanding the ketch Intrepid, which entered the harbor of Tripoli 16 February 1804 and destroyed the captured U.S. frigate Philadelphia in what Lord Nelson called the most daring act of the age.

Izard was assigned duty under Lt. Decatur, with Midshipman John Rowe and 15 men, to hold the spar deck.

She served in the Pacific during World War II, including the battles of Kwajalein, the Philippine Sea, Leyte, and Iwo Jima, among others.