Rube Bloom (April 24, 1902—March 30, 1976) was an American composer of popular songs. He was born Reuben Bloom in New York City.

Rube Bloom was a multi-faceted entertainer, and in addition to being a songwriter, was a pianist, arranger, band leader, recording artist, and writer (he wrote several books on piano method). During his career, he worked with many well-known performers, including Bix Beiderbecke, Ruth Etting, and the Dorsey brothers. He collaborated with a wide number of lyricists, including Johnny Mercer, Ted Koehler, and Mitchell Parish.

His first hit came in 1927 with 'Soliloquy'; his last was Here's to My Lady in 1952, which he wrote with Johnny Mercer. Bloom formed and led a number of bands during his career, such as Rube Bloom and His Bayou Boys. At other times, he played with other bands; an example of this side of his career can be found in his work with Bix Beiderbecke and Frankie Trumbauer on the 1924 record, Sioux City Six'.

According to some sources, his first name was pronounced like 'Ruby' by his friends.

Bloom died in New York City, New York.

Songs

• "Don't Worry 'Bout Me"
• "Fools Rush In"
• "Truckin'"
• "What Goes Up Must Come Down"
• "Day In - Day Out"
• "Give Me the Simple Life"