John O’Gallagher (born November 8, 1964 in Anaheim, CA) is an internationally known saxophonist and composer who’s career spans a thirty year period living in New York City (1988-2018)  and nearly a decade in Europe (living currently near Lisbon, Portugal). He has performed along side some of the most renowned musicians in jazz including Joe Henderson, Kenny Wheeler, Maria Schneider, Tyshawn Sorey, Tony Malaby, Andrew Cyrille, Michael Formanek, Kris Davis, Jeff Williams, Rudresh Mahanthappa, Peter Evans, Thomas Morgan, Clarence Penn, Mike Gibbs, Gerald Clever, Paul Dunmall, Tom Rainey, Drew Gress, Ben Monder, Billy Hart, Jason Palmer, Billy Mintz, Ralph Alessi, Dan Weiss, Noah Preminger, Leo Genovese, Bob Belden, Rudy Royston, Russ Lossing, Ben Street, Jeff Hirshfield,  et al.

Appearing on more than 80 CDs (with 13 as a leader), his most recent project (‘Ancestral’ on Whirlwind Recordings) features jazz royalty and master drummers Andrew Cyrille and Billy Hart, and guitar virtuoso Ben Monder in a program of original music. Within his discography, three recordings have received Juno Award nominations, two recordings have received Grammy Award nominations, and one recording has received a Grammy Award.

O’Gallagher is also active in jazz education, performing and teaching masterclasses at numerous conservatories around the world. He is the author of ‘Twelve-Tone Improvisation’ published by Advance Music and is currently developing a book from his groundbreaking Ph.D. dissertation on John Coltrane: ‘Analyzing Pitch Structure in Late-Period Recordings of John Coltrane: Interstellar Space and Stellar Regions’.