Six warships of Sweden have been named Södermanland, after Södermanland:
- HSwMS Södermanland (1651), a warship launched in 1651.
- HSwMS Södermanland (1693), a warship launched in 1693.
- HSwMS Södermanland (1749), a galley launched in 1749.
- HSwMS Södermanland (1750), a warship launched in 1750.
- HSwMS Södermanland (J21), a Östergötland-class destroyer launched in 1956 and stricken in 1982.
- HSwMS Södermanland (Söd), a Västergötland-class submarine launched in 1988 and since in active service.
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.