H. B. Barnum (born Hidle Brown Barnum, 15 July 1936, Houston, Texas) is an American pianist, arranger, record producer, songwriter, and former child actor.

After winning a nationwide talent contest at the age of four and starring in the motion picture Valley of the Sun Marches On, he continued his acting career on TV in the Amos 'n Andy Shows, the Jack Benny Show, and others, making his first solo recording as Pee Wee Barnum in 1950.