USS Kennedy may refer to the following ships of the United States Navy:
- Named for John Pendleton Kennedy (1795–1870)
- was a supply ship purchased by the US Navy in 1853 and sold in November 1855
- was a launched 15 February 1919 and scrapped in 1931
- Named for Joseph Patrick Kennedy, Jr. (1915–1944)
- was a launched 26 July 1945, decommissioned in 1973 and preserved as a museum ship
- Named for John Fitzgerald Kennedy (1917–1963)
- , an aircraft carrier in commission from 1968 to 2007
- , a currently fitting out
- Named for Robert F. Kennedy (1925–1968)
- (T-AO-208), a currently in service