Kragerö
| Name | Kragerö |
| Type | Sailing vessel |
| GRT | 550 tons |
| Country |  Norwegian |
| Built | 1872 |
| Builder | J. Hamborg, Kragerø |
| Operator | Heinrich Biørn jr. A/S, Kragerø |
| History |
U-boat attacks on Sailing vessel Kragerö
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Jun 1917 | UB 33 (Karl Ruprecht) | prize | Skagerrak | 58° 03'N, 8° 27'E | Norway - UK | pitprops | 0 |
| Bark. Taken as prize and retained. | ||||||||
Position of attack on Kragerö
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