USS Richard S. Bull (DE-402) was a John C. Butler-class destroyer escort in service with the United States Navy from 1944 to 1946.

Reporting for duty as a fighter pilot on board USS Lexington on 27 December 1941, he missed out on the early raids against the Japanese as his squadron VF-2 was converting from Brewster F2A Buffalos to Grumman F4F Wildcats (their place being taken by the Grumman-equipped VF-3).

In the Battle of the Coral Sea on 8 May 1942, he led the escort section assigned to Lexington's Air Group Commander, Cdr.

After Ault and his men had dive-bombed the carrier Shōkaku, scoring one hit, Bull and his wingman, Ens.

Following shakedown off Bermuda, Richard S. Bull departed Boston, Massachusetts on 6 May 1944, and proceeded via the Panama Canal to Pearl Harbor, arriving on 30 May.

After transferring the Eversole survivors to Bountiful, at Kossol Roads, Palau Island, she proceeded with escort carriers from Manus to Pearl Harbor, arriving on 19 November.

She provided medical treatment 30 August to casualties aboard SS Peter White, damaged by a mine in the northern Philippines.