| U-236 | Type VIIC |
| Feldpost Number | M 49 652 |
| Construction Yard | F.Krupp Germaniawerft AG, Kiel-Gaarden |
| Yard Number | 666 |
| Ordered | 20th Jan 1941 |
| Keel laid | 23rd Mar 1942 |
| Launched | 24th Nov 1942 |
| Commissioned | 9th Jan 1943 |
| Baubelehrung | 1.KLA, Kiel |
| Training, Flotillas and Duties |
| 01.43 - 05.43 | 5.U-Flottille, Kiel Ausbildungsboot (under training)
|
| Decommissioned
|
| 09.43 - 04.44 | 24.U-Flottille, Gotenhafen Ausbildungsboot (under training)
|
| 05.44 - 03.45 | 21.U-Flottille, Pillau Schulboot (training boat)
|
| 03.45 - 05.45 | 31.U-Flottille, Wilhelmshaven Ausbildungsboot (under training)
|
| Commanders |
| 01.43 - 05.43 | OL Reimar Ziesmer see also: U-145 U-591 |
| 09.43 - 07.44 | LT Curt Hartmann see also: U-71 U-982 |
| 05.44 - 06.44 | OL Ludo Kregelin see also: U-60 U-3003 |
| 07.44 - 05.45 | OL Herbert Mumm see also: U-4 |