Reuben Bloom (April 24, 1902 – March 30, 1976) was an American songwriter, pianist, arranger, band leader, recording artist, vocalist, and author.

Bloom was born and died in New York City. He was Jewish.

During his career, he worked with many well-known performers, including Bix Beiderbecke, Joe Venuti, Ruth Etting, Stan Kenton, Tommy and Jimmy Dorsey. He collaborated with a wide number of lyricists, including Johnny Mercer, Ted Koehler, and Mitchell Parish.

During the 1920s he wrote many novelty piano solos, which are still well regarded today. He recorded for the Aeolian Company’s Duo-Art reproducing piano system various titles including his “Spring Fever”. His first hit came in 1927 with “Soliloquy”; his last was “Here’s to My Lady” in 1952, which he wrote with Johnny Mercer. In 1928, he made a number of records with Joe Venuti’s Blue Four for OKeh, including five songs he sang, as well as played piano.