U-boat Losses - 1939
| Date | U-boat | Crew | Dead | Surv. | Notes | |
September | ||||||
| 14 Sep, 1939 | U-39 | 44 | 0 | 44 | Warship | |
| 20 Sep, 1939 | U-27 | 38 | 0 | 38 | Warship | |
October | ||||||
| 8 Oct, 1939 | U-12 | + | 27 | 27 | 0 | Lost to mines |
| 13 Oct, 1939 | U-40 | 48 | 45 | 3 | Lost to mines | |
| 13 Oct, 1939 | U-42 | 46 | 26 | 20 | Warship | |
| 14 Oct, 1939 | U-45 | + | 38 | 38 | 0 | Warship |
| 25 Oct, 1939 | U-16 | + | 28 | 28 | 0 | Warship |
November | ||||||
| 29 Nov, 1939 | U-35 | 43 | 0 | 43 | Warship | |
December | ||||||
| 4 Dec, 1939 | U-36 | + | 40 | 40 | 0 | Warship |
9 U-boats lost in 1939 (204 men died and 148 men survived those losses)
+ means that the boat was lost with all hands.
U-boats stricken from records (often after sustaining prior combat damage) and boats scuttled by their own crews are not included in this losses figure here above. We, however, include them in the listing for better view of events.