Santa Maria
| Name | Santa Maria |
| Type | Fishing vessel (sail) |
| GRT | 48 tons |
| Country |  Portuguese |
| Built | |
| Builder | |
| Operator | |
| History | Tonnage given as 56 in Spindler. |
U-boat attacks on Fishing vessel (sail) Santa Maria
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Sep 1918 | U 22 (Hinrich Hermann Hashagen) | Sunk | off Peniche, beteewn Lisbon and Porto |
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