Frank J. Gillis (20 August 1914 – 17 September 1999) was an American jazz pianist, ethnomusicologist and bibliographer.
From the mid-1930s into the 1940s, he played in the local Ash Trumpet Club with traditional jazz musicians including Bobby Hackett, Red Nichols, Jack Teagarden and Doc Cenardo.
[4] Gillis was also (co-)author of several musicological bibliographies, he was the President of the Society for Ethnomusicology from 1973 to 1975, and from 1966 until 1970 he was the editor of the journal Ethnomusicology,[5] for which he wrote numerous original bibliographical articles including discographies and filmographies.
[6] He also published the documentary album and book, Indiana Ragtime, on which he is featured as a pianist.
[7] Additionally, he worked on the publication of jazz trumpeter Lee Collins's memoirs.