| Born | 26 Oct, 1914 | Scheibe, Glatz, Silesia |
| Died | 9 Nov, 1943 | North Atlantic |
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Ranks
Decorations |
U-boat Commands
| U-59 | 17 Apr, 1941 | - | Dec, 1941 | No war patrols |
| U-707 | 1 Jul, 1942 | - | 9 Nov, 1943 (+) | 3 patrols (128 days) |
Patrol info
| U-boat | Departure | Arrival | |||||
| 1. | U-707 | 12 Jan, 1943 | Kiel | 8 Mar, 1943 | St. Nazaire | Patrol, | 56 days |
| 2. | U-707 | 12 Apr, 1943 | St. Nazaire | 31 May, 1943 | Bordeaux | Patrol, | 50 days |
| 3. | U-707 | 12 Oct, 1943 | Bordeaux | 13 Oct, 1943 | La Pallice | 2 days | |
| 4. | U-707 | 19 Oct, 1943 | La Pallice | 9 Nov, 1943 | Sunk | Patrol, | 22 days |
| 3 patrols, 128 days at sea | |||||||
Ships hit by Günter Gretschel
| Date | Boat | Name of ship | Tons | Nat. | Convoy | Fate * | |
| 24 Feb, 1943 | U-707 | Jonathan Sturges | 7.176 |  | am | ON-166 | |
| 5 May, 1943 | U-707 | North Britain | 4.635 |  | br | ONS-5 | |
| 11.811 | |||||||
* Unless otherwise noted the ships listed here were sunk. | |||||||
Decorations and ranks information is in many cases not complete. If you can help on any of those missing that would be great.