Dornfontein
| Name | Dornfontein |
| Type | Auxiliary motor |
| GRT | 766 tons |
| Country |  Canadian |
| Built | 1918 |
| Builder | Marine Construction Co. (Canada), Ltd., St. John, N.B. |
| Operator | Marine Construction Co. (Canada), Ltd., St. John, N.B. |
| History | Wood four-masted schooner with auxiliary engine |
U-boat attacks on Auxiliary motor Dornfontein
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Aug 1918 | U 156 (Richard Feldt) | Sunk | Captured and burnt 25 miles WNW of Brier Island, Nova Scotia. Towed in but a total loss. | St. John, N.B. - Port Natal | 0 |
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