Lt. Comdr. Ralph Hickox (August 29, 1903 – February 18, 1942) was an officer of the United States Navy during World War II. Hickox was born in Washington, D.C. Enlisting in the United States Marine Corps September 23, 1921, he was appointed to the United States Naval Academy July 18, 1923 and commissioned ensign June 2, 1927. In the peacetime Navy Hickox served in a variety of ships and stations and was finally appointed commanding officer of the destroyer Truxtun (DD-229) October 3, 1941. He had been commissioned lieutenant commander July 1, of that year.