Marilyn Bergman (née Keith, born 1929) is a composer, songwriter and author.

She was born in Brooklyn, New York and studied psychology and English at New York University. Together with her husband Alan Bergman whom she married in 1958, she wrote music and lyrics for numerous television shows, films, and stage musicals.

Well-known works credited to Bergman and her husband include:

• The Windmills of Your Mind (1968), music composed by Michel Legrand
• The Way We Were (1973), with Marvin Hamlisch
• Never Say Never Again (1983), title song of the film of the same name
• You Don't Bring Me Flowers
• Yellow Bird
• Nice n' Easy
• How Do You Keep The Music Playing?
• What Are You Doing The Rest Of Your Life?
• Ordinary Miracles
• The score to the film Yentl
• Moonlight, featured in the film Sabrina

In 1980 she was inducted into the Songwriters Hall of Fame and in 1995 she was awarded an honorary doctorate by the Berklee College of Music. She is the president and chairman of the American Society of Composers, Authors, and Publishers (ASCAP).