De Twee Marcels
| Name | De Twee Marcels |
| Type | Fishing vessel |
| GRT | 13 tons |
| Country |  Belgian |
| Built | 1912 |
| Builder | L. Van Torre, Ostende |
| Operator | Henri Corneau |
| History | Fishing registration: O 31 |
U-boat attacks on Fishing vessel De Twee Marcels
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 29 Jan 1918 | UB 54 (Egon von Werner) | Sunk | Bay of Seine | 49.50N, 00.17W | 4 |
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