| Intro | Arbeiter bei der Eisenbahnverwaltung von Deutsch-Südwestafrika |
| Is | Worker |
| From | Namibia |
| Gender | male |
Ernst Sonntag is a retired West German slalom canoeist who competed in the early 1950s. He won a silver medal in the folding K-1 team event at the 1951 ICF Canoe Slalom World Championships in Steyr.