Eugene Stephen Jay (born January 26, 1951) is an American bassist, best known for working with "Weird Al" Yankovic.

He has scored more than fifty nationally broadcast PBS specials and series episodes, including three George Foster Peabody Award winners, and contributed to several feature films.

He has also done extensive session work, released eight solo records on his own Ayarou label, and produced two albums for the WEA Nonesuch Explorer series.

Jay's background includes a BA and MM Graduate Fellowship in composition from the University of South Florida in 1972.

[citation needed] Selections from his archival field recordings of traditional West African ceremonies, dances, and solo performances were made into three albums released by Warner/Nonesuch.