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Allied Warships
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WWI U-boat commanders
Most Successful U-boat Commanders
Below are the 20 most successful U-boat commanders of World War One.
| Commander | Successes | |
| 1. | Kptlt. Lothar von Arnauld de la Perière | 195 ships sunk or captured (455,869 tons) 8 ships damaged (34,312 tons) |
| 2. | Kptlt. Walter Forstmann | 149 ships sunk or captured (391,607 tons) 7 ships damaged (30,552 tons) |
| 3. | KrvKpt. Max Valentiner | 144 ships sunk or captured (299,474 tons) 6 ships damaged (33,151 tons) |
| 4. | Kptlt. Otto Steinbrinck | 206 ships sunk or captured (244,778 tons) 12 ships damaged (65,720 tons) |
| 5. | Kptlt. Hans Rose | 82 ships sunk or captured (221,942 tons) 9 ships damaged (45,606 tons) |
| 6. | Kptlt. Gustav Sieß | 56 ships sunk or captured (188,295 tons) 10 ships damaged (36,363 tons) |
| 7. | Kptlt. Walther Schwieger | 49 ships sunk or captured (185,212 tons) 4 ships damaged (3,488 tons) |
| 8. | Kptlt. Wolfgang Steinbauer | 51 ships sunk or captured (183,871 tons) 12 ships damaged (60,480 tons) |
| 9. | Kptlt. Claus Rücker | 80 ships sunk or captured (174,655 tons) 3 ships damaged (9,951 tons) |
| 10. | Oblt. Reinhold Saltzwedel | 111 ships sunk or captured (172,756 tons) 10 ships damaged (17,131 tons) |
| 11. | KrvKpt. Waldemar Kophamel | 56 ships sunk or captured (157,771 tons) 5 ships damaged (7,998 tons) |
| 12. | Kptlt. Hans von Mellenthin | 57 ships sunk or captured (154,662 tons) 7 ships damaged (31,556 tons) |
| 13. | Kptlt. Otto Wünsche | 77 ships sunk or captured (153,630 tons) 6 ships damaged (25,317 tons) |
| 14. | Kptlt. Kurt Hartwig | 44 ships sunk or captured (153,082 tons) 6 ships damaged (27,902 tons) |
| 15. | Oblt. Johannes Lohs | 77 ships sunk or captured (148,310 tons) 16 ships damaged (89,369 tons) |
| 16. | Kptlt. Robert Moraht | 46 ships sunk or captured (147,869 tons) 3 ships damaged (9,420 tons) |
| 17. | Kptlt. Konrad Gansser | 57 ships sunk or captured (143,667 tons) 3 ships damaged (10,771 tons) |
| 18. | Kptlt. Rudolf Schneider | 45 ships sunk or captured (140,783 tons) 5 ships damaged (21,956 tons) |
| 19. | KrvKpt. Otto Schultze | 54 ships sunk or captured (137,817 tons) 9 ships damaged (31,293 tons) |
| 20. | Oblt. Erwin Waßner | 90 ships sunk or captured (136,203 tons) 5 ships damaged (15,297 tons) |
These 20 commanders sank 1,726 ships with a total of 3,992,253 tons.