USS San Diego

USS San Diego may refer to:


 * USS San Diego (CA-6), originally the armored cruiser California (ACR-6)
 * USS San Diego (CL-53), a light cruiser commissioned in 1942 in service throughout the Pacific War, and decommissioned 1946
 * USS San Diego (AFS-6), a combat stores ship in service from 1969 to 1997
 * USS San Diego (LPD-22), a San Antonio-class amphibious transport dock, launched in 2010