Bruce Joel Rubin (born March 10, 1943) is an American screenwriter best known for screenplays with metaphysical or science fiction elements. In 1990, he received the Academy Award for Best Original Screenplay for the film Ghost.

Rubin is best known for the supernatural romance Ghost, for which he won the Academy Award for Best Original Screenplay. He also wrote the screenplays for the 1990 psychological horror film Jacob's Ladder, and the science-fiction films Deep Impact and The Last Mimzy. Bruce wrote the story and lyrics for the musical adaptation of Ghost, which premiered in the United Kingdom in March 2011, and opened on Broadway in spring of 2012.

Sometimes credited as Derek Saunders or simply Bruce Rubin, his writing credits include: Jacob's Ladder, Deep Impact, Brainstorm, Ghost, Deadly Friend (which he adapted from the novel Friend by Diana Henstall), My Life, Stuart Little 2, The Last Mimzy and The Time Traveler's Wife.

The film My Life was his Directorial debut.

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