SM UB-126 was a German Type UB III submarine or U-boat in the German Imperial Navy () during World War I. She was commissioned into the German Imperial Navy on 20 April 1918 as SM UB-126. UB-126 was surrendered 24 November 1918 in accordance with the requirements of the Armistice with Germany.
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/0YnYAS7WlP5balU60eLfVQ== | 5.88129e-14 |
| dbr:SM_UB-126 | 5.88129e-14 |