Robert Edward Cox (December 22, 1876 – April 24, 1937) was a sailor serving in the United States Navy who received the Medal of Honor for bravery.

Cox was born December 22, 1876, in St. Albans, West Virginia and after joining the navy was stationed aboard the USS Missouri (BB-11).

As the breech was opened for reloading, hot gases were released into the turret, causing it to catch fire.

While at target practice off Pensacola, Fla., an accident occurred in the after turret of the Missouri whereby the lives of 5 officers and 28 men were lost.

Cox and 2 gunners' mates caused the fire to be brought under control, and the loss of the Missouri, together with her crew, was averted.