Sidney Lippman (March 1, 1914 – March 11, 2003) was an American composer and songwriter renowned for his contributions to popular music in the mid-20th century. Born in Minneapolis, Minnesota, Lippman graduated from the University of Minnesota and furthered his studies in musical composition at the Juilliard School in Manhattan. During World War II, he served as a merchant seaman.

Lippman is best known for composing the music for Nat King Cole's 1951 No. 1 hit "Too Young," with lyrics by his frequent collaborator Sylvia Dee. The idea for "Too Young" emerged when Dee mentioned her younger brother's impending marriage, prompting Lippman and Dee to simultaneously suggest the song's title. Another notable collaboration was with Buddy Kaye and Fred Wise, resulting in the No. 1 hit "'A' - You're Adorable (The Alphabet Song)" in 1949, recorded by Perry Como and the Fontane Sisters. Lippman also achieved success with the novelty song "Chickery Chick," a number one hit for Sammy Kaye in 1945.

In addition to his work in popular music, Lippman contributed to musical theatre, composing the score for the Broadway musical "Barefoot Boy with Cheek" in 1947. Over his career, he collaborated with various artists, including Burt Reynolds, Andy Minsker, and Tracey Ullman.

Sidney Lippman passed away at the age of 89 in a nursing home in North Bergen, New Jersey, having lived in Fort Lee. His legacy includes a repertoire of successful pop songs and contributions to American musical theatre.