John I. Delafose (16 April 1939 – 17 September 1994) was an American Zydeco accordionist from Louisiana. As a child, Delafose fashioned fiddles and guitars out of old boards and cigar boxes fitted with window-screen wire. He eventually took up the harmonica, and at the age of 18 learned the button accordion. However, he soon turned to farming, and did not pursue music as a career until the early 1970s. He began serving as an accordionist and harpist with a variety of local Zydeco bands.