Jason Alexander (born 1959) is an American actor, comedian and voice actor.

Jason Alexander may also refer to:

Jason Alexander (rugby union) (born 2000), South African rugby union player Jason Alexander (baseball) (born 1993), baseball player Jason Allen Alexander, ex-husband of Britney Spears Jason Shawn Alexander (born 1975), comic-book artist Jace Alexander (born 1964), born Jason Alexander, American television director and actor

See also J. Alexander (disambiguation) Alexander (surname)