SM U-101 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-101 was engaged in the German campaign against Allied commerce (Handelskrieg) during that conflict.[1] On 26 November 1917, U-101 torpedoed and damaged RFA Crenella,[2] which managed to return to port with assistance from .[3]
| Date | Name | Nationality | Tonnage[4] | Fate[5] | |
|---|---|---|---|---|---|
| 6 August 1917 | Rosemount |  United Kingdom | 3,044 | Sunk | |
| 26 September 1917 | Jacqueline |  France | 2,899 | Sunk | |
| 9 October 1917 | Nervier |  Belgium | 1,759 | Sunk | |
| 26 November 1917 | 7,035 | Damaged | |||
| 27 November 1917 | Notre Dame De Rostrenen | France | 186 | Sunk | |
| 19 January 1918 | St. Clair | United Kingdom | 621 | Damaged | |
| 1 February 1918 | Kindly Light | United Kingdom | 116 | Sunk | |
| 2 February 1918 | Marie Magdeleine | France | 115 | Sunk | |
| 2 February 1918 | Sofie | United Kingdom | 354 | Sunk | |
| 3 February 1918 | Nikolaos | 3,561 | Damaged | ||
| 5 February 1918 | Mexico City | United Kingdom | 5,078 | Sunk | |
| 20 March 1918 | Glenford | United Kingdom | 494 | Sunk | |
| 22 March 1918 | Trinidad | United Kingdom | 2,592 | Sunk | |
| 23 March 1918 | Jane Gray | United Kingdom | 124 | Sunk | |
| 24 March 1918 | John G. Walter | United Kingdom | 258 | Sunk | |
| 27 March 1918 | Allendale | United Kingdom | 2,153 | Sunk | |
| 30 March 1918 | Lough Fisher | United Kingdom | 418 | Sunk | |
| 2 April 1918 | Solway Queen | United Kingdom | 307 | Sunk | |
| 14 May 1918 | Embla |  Denmark | 157 | Sunk | |
| 26 May 1918 | Princess Royal | United Kingdom | 1,986 | Sunk | |
| 27 May 1918 | Molière | France | 1,545 | Sunk | |
| 28 May 1918 | Flora | France | 209 | Sunk | |
| 29 May 1918 | Souvenir | Denmark | 549 | Sunk | |
| 30 May 1918 | Waneta | United Kingdom | 1,683 | Sunk | |
| 31 May 1918 | Pretty Polly | United Kingdom | 19 | Sunk | |
| 3 June 1918 | HMT St. John’s | 208 | Sunk |