| Mario Castellani | |
| Birth Date: | 24 November 1906 |
| Birth Place: | Rome, Kingdom of Italy |
| Death Place: | Rome, Italy |
| Years Active: | 1924–1971 |
Mario Castellani (24 November 190625 April 1978) was an Italian comic actor, best known as the sidekick of famous comic actor Antonio De Curtis (Totò). He appeared with the latter in all his major movies, as well as many of Totò's theatre productions.
Below is a partial list of his films—