Otto Siffling, a German forward, had spells at Waldhof Mannheim. He was an international for Germany before his death in 1939.
| Surname | Siffling |
| Name | Otto |
| Nationality | Germany |
| Birthplace | Mannheim, Germany |
| Birth Date | 3 August 1912 |
| Death Date | 20 October 1939 (27 years old) |
| Position | Forward |
| Height | 1.76 m |
| Weight | 74 kg |
Waldhof Mannheim
Germany National Team
Germany Olympic Team