Sidney Lippman (March 1, 1914 – March 11, 2003) was a composer and songwriter. He wrote the music for Nat King Cole's 1951 No. 1 hit "Too Young". He died at a nursing home in North Bergen, New Jersey. He was 89 and had lived in Fort Lee, New Jersey.

"Too Young's" words were written by Sylvia Dee, a lyricist and longtime collaborator with Lippman. They got the idea for the song when she told him that her younger brother was getting married and she thought he was too young. As she said that, Mr. Lippman recalled, she looked at me and I looked at her and we both said, 'Title?' He teamed up with Buddy Kaye and Fred Wise to do the words and music for 'A' - You're Adorable (The Alphabet Song), which also became a No. 1 hit, in 1949, as an RCA Victor recording with Perry Como and the Fontane Sisters. Mr. Lippman's other successful pop songs included the novelty Chickery Chick, which was a number one hit for Sammy Kaye in 1945. Sidney Lippman, also called Sid, was a native of Minneapolis and graduated from the University of Minnesota. During World War II he was a merchant seaman. He moved to Manhattan and studied musical composition for a year at the Juilliard School. During his career, Lippman worked with Burt Reynolds, Andy Minsker and Tracey Ullman.