USS Dennis (DE-405) was a World War II John C. Butler-class destroyer escort in the service of the United States Navy. Dennis was named after Radioman Third Class Otis Lee Dennis. He was killed in action 1 February 1942 with Carleton Thayer Fogg (namesake of USS Fogg) when their SBD Dauntless was lost during an attack launched by USS Enterprise on Roi-Namur, Kwajalein. It was one of the first offensive operations following Pearl Harbor.