Benjamin Jackson Porter "Jackie" Davis[1][2] (December 13, 1920 – November 2, 1999) was an American soul jazz singer, organist and bandleader.

He is notable for his contributions in bringing the Hammond organ to the forefront of jazz and pop, preceding the better-known Jimmy Smith by several years.

[3] He made a brief comeback in 1980, recording a self-titled album for EMI, and making a cameo appearance in the film Caddyshack as the country club valet Porterhouse.

In 1963, in an interview for the Hammond Times, he thought "the term 'jazz' is vastly overworked and misused ... Basically, jazz is a style of making music.

[3] Shirley Scott stated her playing was influenced by Davis, claiming he knew "everything about the Hammond organ" and was impressed with his ability to manipulate the instrument.