Robert Allen Deitcher, known professionally as Robert Allen, was an influential American pianist, arranger, and composer of popular songs. Born on February 5, 1927, in Troy, New York, into a Jewish family, Allen carved a niche for himself in the music industry with his exceptional talent. He had four children: a son, Gordon, and three daughters, Pamela, Diana, and Katie.

Allen's career included working as an accompanist for notable artists such as Perry Como, Peter Lind Hayes, and Arthur Godfrey. He was renowned for his collaborations with lyricist Al Stillman, producing several hits that became staples of the American songbook. Among his most famous compositions are "(There's No Place Like) Home for the Holidays," "Everybody Loves a Lover," and "Chances Are."

Throughout the 1950s, Allen's songs were performed by a variety of artists, including Perry Como, the Four Lads, and Johnny Mathis, contributing to his widespread acclaim. His work extended beyond traditional songwriting; he was one of the early adopters of television as a medium to popularize music, composing for shows like NBC's Studio One and Kraft Theater.

Despite the commercial success of his songs, which have sold over half a billion copies, Allen's name has not maintained the same level of recognition as some of his contemporaries. This is perhaps due to the perception of his work as more mainstream pop compared to the sophisticated stylings of other songwriters of his era.

Robert Allen spent much of his professional life in New Rochelle, New York, from 1963 onwards. He passed away from colon cancer on October 1, 2000, in Quogue, New York, at the age of 73. His legacy endures through the timeless appeal of his music, which continues to resonate with audiences around the world.