Alexander Bernstein, Baron Bernstein of Craigweil (b. 15 March 1939) is a former television executive and a Labour member of the House of Lords.

Having been educated at Stowe School and St John's College, Cambridge, Bernstein joined the Granada Group , the leisure and television company founded by his uncle and father , Sidney and Cecil Bernstein . He was a director of the company, managing director of Granada Television in the 1970s and Chairman of Granada Group 1979-96.

A major donor to the Labour Party, Bernstein was made a life peer as Baron Bernstein of Craigweil, of Craigweil in the County of West Sussex in 2000. Bernstein has also been active in the arts, serving on several governing bodies and trusts.

He married Vanessa Anne Mills in 1962; they had a son and a daughter, and divorced in 1993. In 1995, he married Angela Mary Serota, ex-wife of Nicholas Serota.