Horace Elva Tapscott (April 6, 1934 – February 27, 1999) was an American jazz pianist and composer. He formed the Pan Afrikan Peoples Arkestra (also known as P.A.P.A., or The Ark) in 1961 and led the ensemble through the 1990s.

Tapscott was born in Houston, Texas, and moved to Los Angeles, California, at the age of nine. By this time he had begun to study piano and trombone. He played with Frank Morgan, Don Cherry, and Billy Higgins as a teenager.

After service in the Air Force in Wyoming, he returned to Los Angeles and played trombone with various bands, notably Lionel Hampton (1959–61). Soon after, though, he quit playing trombone and focused on piano.