Pia Zadora (born May 4, 1954) is an American actress and singer. After working as a child actress on Broadway, in regional theater, and in the film Santa Claus Conquers the Martians (1964), she came to national attention in 1981 when, following her starring role in the highly criticized  Butterfly, she won a Golden Globe Award as New Star of the Year.

When her film career failed to take off, she became a singer of popular standards and made several successful albums backed by a symphonic orchestra; as a singer she earned a measure of respect from critics who had previously written her off as an actress.