John F. Stowell (born July 30, 1950) is an American jazz guitarist, composer, author, and lecturer.

The two formed a duo in 1976 that recorded and toured prolifically for seven years, with performances in the United States, Canada, Europe and Australia.

He served as assistant director and performer at Oregon Public Broadcasting's PDX Jazz Summit in 1991, and since 1995 has been a contributing columnist for a number of magazines, including Down Beat, Guitar Player, Canadian Musician, Soundcheck (Germany), and Guitar Club (Italy).

He has also worked with Uwe Kropinski, Dave Liebman, Hiram Mutschler, Gérard Pansanel, Gustavo Assis-Brasil, David Becker, and Nicolao Valiensi.

Stowell holds his guitar in a diagonal position, which facilitates playing close, piano-like voicings more comfortably.