| Convém Martelar | |
| Director: | Manuel F. Araujo, António Silva |
| Starring: | Manuel F. Araujo |
| Cinematography: | João Stamato |
| Distributor: | Amazônia Filme |
| Country: | Brazil |
| Language: | Silent |
Convém Martelar is a 1920 Brazilian silent film directed by and starring Manuel F. Araujo.
The film premiered on 28 January 1920 in Rio de Janeiro.