Theodore Roscoe (1906–1992) was an American biographer and writer of adventure, fantasy novels and stories. Roscoe's stories appeared in pulp magazines including Argosy, Wings, Flying Stories, Far East Adventure Stories, Fight Stories, Action Stories and Adventure. A collection of his stories, The Wonderful Lips of Thibong Linh, was published by Donald M. Grant, Publisher, Inc. in 1981.

Roscoe was commissioned by the United States Naval Institute to write the detailed and massive histories United States Submarine Operations in World War II (1949) and United States Destroyer Operations in World War II (1953). He subsequently wrote several other books on naval history including The Trent Affair, November, 1861: U.S. detainment of a British ship nearly brings war with England (1972)