SM UC-58 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 12 January 1916, laid down on 18 March 1916, and was launched on 21 October 1916. She was commissioned into the German Imperial Navy on 12 March 1917 as SM UC-58.[1] In twelve patrols UC-58 was credited with sinking 25 ships, either by torpedo or by mines laid. UC-58 was surrendered on 24 November 1918[2] and broken up at Cherbourg in 1921.
A Type UC II submarine, UC-58 had a displacement of 415t when at the surface and 498t while submerged. She had a length overall of 50.52m (165.75feet), a beam of 5.22m (17.13feet), and a draught of 3.61m (11.84feet). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 290PS300PS (a total of 580PS600PS), two electric motors producing 620PS, and two propeller shafts. She had a dive time of 48 seconds and was capable of operating at a depth of .
The submarine had a maximum surface speed of and a submerged speed of . When submerged, she could operate for at ; when surfaced, she could travel at . UC-58 was fitted with six mine tubes, eighteen UC 200 mines, three torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one 8.8sp=usNaNsp=us Uk L/30 deck gun. Her complement was twenty-six crew members.
| Date | Name | Nationality | Tonnage[3] | Fate[4] | |
|---|---|---|---|---|---|
| 19 May 1917 | Erik |  Sweden | 785 | Sunk | |
| 19 May 1917 | Göta | Sweden | 1,128 | Captured as a prize | |
| 19 May 1917 | Kjell | Sweden | 235 | Sunk | |
| 19 May 1917 | Kyros | Sweden | 221 | Sunk | |
| 19 May 1917 | Lizzie | Sweden | 1,095 | Captured as a prize | |
| 19 May 1917 | Märta | Sweden | 493 | Captured as a prize | |
| 19 May 1917 | Olga | Sweden | 83 | Sunk | |
| 19 May 1917 | Pauline | Sweden | 168 | Sunk | |
| 19 May 1917 | Therese | Sweden | 208 | Sunk | |
| 3 June 1917 | Sten II | 227 | Sunk | ||
| 6 June 1917 | Edvard | Sweden | 98 | Sunk | |
| 6 June 1917 | Elianna | Sweden | 75 | Sunk | |
| 11 June 1917 | August | Sweden | 120 | Sunk | |
| 15 June 1917 | Cleo | Sweden | 92 | Sunk | |
| 7 July 1917 | MT 11 | 29 | Sunk | ||
| 7 July 1917 | MT 14 | 29 | Sunk | ||
| 14 July 1917 | Bonus | Grand Duchy of Finland | 111 | Sunk | |
| 10 September 1917 | Sims | Unknown | Sunk | ||
| 27 November 1917 | Bditelnyi | 380 | Sunk | ||
| 30 November 1917 | MT 1 | 25 | Sunk | ||
| 29 December 1917 | Ennismore |  United Kingdom | 1,499 | Sunk | |
| 1 January 1918 | Eriksholm | Sweden | 2,632 | Sunk | |
| 12 January 1918 | Adolph Meyer | Sweden | 807 | Sunk | |
| 11 February 1918 | Baku Standard | United Kingdom | 3,708 | Sunk | |
| 12 February 1918 | St. Magnus | United Kingdom | 809 | Sunk | |
| 13 February 1918 | Lackawanna | United Kingdom | 4,125 | Damaged | |
| 18 May 1918 | 7,175 | Sunk | |||
| 28 June 1918 | Pochard | United Kingdom | 146 | Sunk | |
| 17 September 1918 | Muriel | United Kingdom | 1,831 | Sunk |