Cynthia Weil (born October 18, 1937 in New York City, New York) is a prominent American songwriter.

Weil was trained as an actress and dancer but soon demonstrated a song writing ability that led to her collaboration with Barry Mann whom she would eventually marry. Weil became one of the Brill Building songwriters of the 1960s and one of the most important writers during the emergence of rock and roll. She and her husband went on to create songs for numerous contemporary artists, winning a number of Grammy Awards and Academy Award nominations for their compositions for film.

In 1987, she was inducted with her husband into the Songwriters Hall of Fame.

Well known songs written by Barry Mann and Cynthia Weil

• He's Sure The Boy I Love - The Crystals
• On Broadway - The Drifters
• Magic Town - The Vogues
• Uptown - The Crystals
• Blame It On The Bossa Nova - Eydie Gorme
• Only In America - Jay and the Americans
• We Gotta Get Out Of This Place - The Animals
• [You're My] Soul & Inspiration - The Righteous Brothers
• Kicks - Paul Revere and the Raiders
• You've Lost That Lovin' Feelin' - The Righteous Brothers
• I Just Can't Help Believin' - B. J. Thomas
• Here You Come Again - Dolly Parton