USS Portsmouth
Four ships of the United States Navy were named USS Portsmouth :
- USS Portsmouth (1798) , in service from 1798 to 1801
- USS Portsmouth (1843) , in service from 1844 to 1878
- USS Portsmouth (CL-102) , a Cleveland-class light cruiser , in service from 1945 to 1949
- USS Portsmouth (SSN-707) , a Los Angeles-class submarine , in service from 1983 to 2004