USS Pittsburgh

Four ships of the United States Navy were named USS Pittsburgh , after the city of Pittsburgh , Pennsylvania :

• USS Pittsburgh (1861) , an ironclad, in service from 1862 to 1865
• USS Pennsylvania (ACR-4) , a Pennsylvania-class cruiser , in service from 1905 to 1931, later renamed USS Pittsburgh (CA-4)
• USS Pittsburgh (CA-72) , a Baltimore-class cruiser , in service from 1944 to 1956
• USS Pittsburgh (SSN-720) , a Los Angeles-class submarine , in service since 1985