Ships hit by U-53
See the profile page for U-53
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | ||
| 15 Sep, 1939 | U-53 | Ernst-Günter Heinicke | Cheyenne | 8.825 |  | br | ||
| 17 Sep, 1939 | U-53 | Ernst-Günter Heinicke |  | Kafiristan | 5.193 | | br | |
| 11 Feb, 1940 | U-53 | Harald Grosse | Imperial Transport (d.) | 8.022 | | br | ||
| 11 Feb, 1940 | U-53 | Harald Grosse | | Snestad | 4.114 |  | nw | |
| 12 Feb, 1940 | U-53 | Harald Grosse | Dalarö | 3.927 |  | sw | ||
| 13 Feb, 1940 | U-53 | Harald Grosse | Norna | 1.022 | | sw | ||
| 14 Feb, 1940 | U-53 | Harald Grosse | | Martin Goldschmidt | 2.095 |  | da | |
| 18 Feb, 1940 | U-53 | Harald Grosse | Banderas | 2.140 |  | sp | ||
| 35.338 | ||||||||
| 7 ships sunk (27.316 tons) and 1 ship damaged (8.022 tons).
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