| Otto Schönthal | |
| Nationality: | Austrian |
| Occupation: | Architect |
| Birth Date: | 10 August 1878 |
| Birth Place: | Vienna, Austria |
| Death Place: | Vienna, Austria |
Otto Schönthal (10 August 1878 - 31 December 1961) was an Austrian architect. His work was part of the architecture event in the art competition at the 1928 Summer Olympics.[1]