USS Enterprise
There have been a number of vessels named USS Enterprise, and therefore could mean: 

Ocean going vessels
 , the 19th century brig
 , a World War II aircraft carrier
 , a Cold War nuclear aircraft carrier

Space vessels
 , a pre-Federation Earth starship
 , a Constitution-class starship
, a partial replica of the Constitution-class starship
, a balloon resembling the Constitution-class starship
 , the Enterprise NCC-1701 as it exists in the alternate reality
 , a Constitution-class refit
 , the Enterprise NCC-1701-A as it exists in the alternate reality
 , an Excelsior-class refit 
 , an Ambassador-class starship
 , a Galaxy-class starship
 , a Sovereign-class starship
 , a  Universe-class starship and possible Federation starship from the future

See also
 , for other ships named Enterprise

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