| Otto Garnus | |
| Nationality: | Swiss |
| Sport: | Athletics |
| Event: | Shot put Discus |
| Birth Date: | 1896 |
| Death Date: | 1 February |
Otto Garnus (1896 - 1 February 1960) was a Swiss athlete. He competed in the men's shot put and the men's discus throw at the 1924 Summer Olympics.[1] He also competed in the men's 82.5kg division in the weightlifting at the 1928 Summer Olympics.[1]