USS Ajax
USS Ajax is the name of four ships in the United States Navy :
- USS Ajax (1869) , entered service in 1864 as USS Manayunk , renamed Ajax in 1869, decommissioned in 1898
- USS Ajax (AG-15) , a necklace , in service from 1898 to 1925.
- USS Ajax (SP-738) , a research vessel
- USS Ajax (AR-6) , Vulcan-class repair ship