December 1915
This is the full listing of all ships hit during December 1915. You can click on any of the links for further information on either ship, U-boat, commander or convoy.
| Date | U-boat | Commander | | Name of ship | Tons | Nat. |
| |
| 1 Dec 1915 | U 33 | Konrad Gansser | | Clan Macleod | 4,796 |  | br |
| 1 Dec 1915 | U 33 | Konrad Gansser | | Umeta | 5,312 |  | br |
| 2 Dec 1915 | U 33 | Konrad Gansser | | Commodore | 5,858 |  | br |
| 3 Dec 1915 | U 39 | Walter Forstmann | | Dante | 889 |  | it |
| 3 Dec 1915 | U 39 | Walter Forstmann | | Helmsmuir | 4,111 |  | br |
| 3 Dec 1915 | UC 1 | Egon von Werner | | Etoile Polaire | 278 |  | br |
| 4 Dec 1915 | UC 14 | Cäsar Bauer | | Intrepido | 680 |  | it |
| 4 Dec 1915 | UC 14 | Cäsar Bauer | | Re Umberto | 2,952 |  | it |
| 5 Dec 1915 | U 39 | Walter Forstmann | | Petrolite (d.) | 3,710 |  | am |
| 5 Dec 1915 | U 39 | Walter Forstmann | | Pietro Lofaro | 517 |  | it |
| 6 Dec 1915 | U 39 | Walter Forstmann | | L. G. Goulandris | 2,123 |  | gr |
| 7 Dec 1915 | U 39 | Walter Forstmann | | Veria | 3,229 |  | br |
| 7 Dec 1915 | k.u.k. U16 | Orest Ritter von Zopa | | Fiore Albania (p.) | 62 |  | al |
| 8 Dec 1915 | UC 7 | Georg Haag | | Ignis | 2,042 |  | br |
| 9 Dec 1915 | U 39 | Walter Forstmann | | Busiris | 2,705 |  | br |
| 9 Dec 1915 | U 39 | Walter Forstmann | | Orteric | 6,535 |  | br |
| 9 Dec 1915 | k.u.k. U4 | Rudolf Singule | | Gjovadje (p.) | unknown |  | al |
| 9 Dec 1915 | k.u.k. U4 | Rudolf Singule | | Papagallo | 10 |  | al |
| 10 Dec 1915 | U 39 | Walter Forstmann | | Porto Said | 5,301 |  | it |
| 10 Dec 1915 | UC 3 | Erwin Waßner | | Nereus | 742 |  | nw |
| 10 Dec 1915 | UC 7 | Georg Haag | | Ingstad | 780 |  | nw |
| 11 Dec 1915 | UC 3 | Erwin Waßner | | Pinegrove | 2,847 |  | br |
| 16 Dec 1915 | | | | Levenpool (d.) | 4,844 |  | br |
| 18 Dec 1915 | U 39 | Walter Forstmann | | Lottie Leask | 94 |  | br |
| 18 Dec 1915 | k.u.k. U15 | Friedrich Fähndrich | | Erzen | 25 |  | al |
| 18 Dec 1915 | k.u.k. U15 | Friedrich Fähndrich | | Figlio Preligiona | 80 |  | al |
| 18 Dec 1915 | UC 3 | Erwin Waßner | | Nico | 712 |  | nw |
| 20 Dec 1915 | UB 10 | Otto Steinbrinck | | Belford | 516 |  | br |
| 20 Dec 1915 | UB 10 | Otto Steinbrinck | | Huntly | 1,153 |  | br |
| 21 Dec 1915 | U 38 | Max Valentiner | | Yasaka Maru | 10,932 |  | jp |
| 21 Dec 1915 | UC 3 | Erwin Waßner | | Lady Ismay | 495 |  | br |
| 21 Dec 1915 | UC 7 | Georg Haag | | Knarsdale | 1,641 |  | br |
| 24 Dec 1915 | U 34 | Claus Rücker | | Ville De La Ciotat | 6,431 |  | fr |
| 24 Dec 1915 | U 34 | Claus Rücker | | Yeddo | 4,563 |  | br |
| 24 Dec 1915 | UC 1 | Egon von Werner | | Carilon | 226 |  | br |
| 24 Dec 1915 | UC 1 | Egon von Werner | | Embla | 1,172 |  | br |
| 25 Dec 1915 | U 24 | Rudolf Schneider | | Van Stirum | 3,284 |  | br |
| 26 Dec 1915 | U 24 | Rudolf Schneider | | Cottingham | 513 |  | br |
| 26 Dec 1915 | U 24 | Rudolf Schneider | | Ministre Beernaert | 4,215 |  | be |
| 26 Dec 1915 | UC 5 | Herbert Pustkuchen | | E 6 | 725 |  | br |
| 26 Dec 1915 | UC 5 | Herbert Pustkuchen | | Resono | 230 |  | br |
| 27 Dec 1915 | UC 3 | Erwin Waßner | | Hadley | 1,777 |  | br |
| 28 Dec 1915 | U 24 | Rudolf Schneider | | El Zorro | 5,989 |  | br |
| 28 Dec 1915 | U 24 | Rudolf Schneider | | Huronian (d.) | 8,755 |  | br |
| 29 Dec 1915 | U 34 | Claus Rücker | | Kenkoku Maru | 3,217 |  | jp |
| 30 Dec 1915 | U 34 | Claus Rücker | | Abelia | 3,650 |  | br |
| 30 Dec 1915 | U 38 | Max Valentiner | | Clan Macfarlane | 4,823 |  | br |
| 30 Dec 1915 | U 38 | Max Valentiner | | Persia | 7,951 |  | br |
| 30 Dec 1915 | UC 10 | Alfred Nitzsche | | Ellewoutsdijk | 2,229 |  | nl |
| 31 Dec 1915 | | | | Ecuador (d.) | 5,688 |  | nl |
| 31 Dec 1915 | UC 7 | Georg Haag | | Speeton | 205 |  | br |
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| 141,614 | | | 47 ships sunk (118,617 tons) and 4 ships damaged (22,997 tons). Legend (d.) means the ship was damaged. (p.) means the ship was taken as prize (included in ships & tonnage lost).
We have a picture of this vessel.
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This map shows where Allied ships were hit during December 1915.

In some cases the exact positions of losses are not known, those are not shown.