Patrols by U-12
See the profile page for U-12
| Commander | Departure | Arrival | Days | |||||
| 1. | Kptlt. Dietrich von der Ropp | 25 Aug, 1939 | Wilhelmshaven | 9 Sep, 1939 | Kiel | 16 days | P | View |
| 2. | Kptlt. Dietrich von der Ropp | 23 Sep, 1939 | Wilhelmshaven | 8 Oct, 1939 | Sunk | 16 days | P | View |
2 War patrols (P) located. | ||||||||