Drácula contra Frankenstein (translation: Dracula against Frankenstein), also known as Dracula, Prisoner of Frankenstein (US title) is 1972 horror film co-written and directed by Jesús Franco. It stars Dennis Price, Howard Vernon, Paca Gabaldón, Alberto Dalbés, Luis Barboo, and Fernando Bilbao. It was a Spanish-French-Liechtensteinian-Portuguese co-production.

The plot centers on Dr. Frankenstein (Price), who successfully captures Count Dracula (Vernon), who along with his monster (Bilbao) controls the vampire for his own evil ends. It was the final of three films released variously in the United States under the title Dracula vs. Frankenstein, preceded by Los Monstruos del Terror (1969) and Dracula vs. Frankenstein (1971). It was Franco's second film to feature the character of Dracula, preceded by his 1970 film Count Dracula starring Christopher Lee in the title role.