John Leavitt Scofield was born December 26, 1951, in Dayton, Ohio, and grew up in Wilton, Connecticut. He studied at Berklee College of Music in the early 1970s before leaving to take professional work, and within a few years he was already recording and touring with some of the era's most established leaders. He spent two years in the Billy Cobham/George Duke Band, recorded with Charles Mingus in 1976, and joined vibraphonist Gary Burton's quartet — stepping into a chair recently vacated by another young guitarist, Pat Metheny, whose own career is covered separately on JazzProfiles.com and who would later record with Scofield as a fellow leader. In the same period Scofield worked with trumpeter Chet Baker and baritone saxophonist Gerry Mulligan: he was in the band for their November 1974 Carnegie Hall reunion, released the following year as a CTI double LP, and he stayed in Baker's circle for 1977's You Can't Go Home Again before his own career, first with Miles Davis and then as a leader, pulled him elsewhere — Baker's full career, including this Scofield connection, is documented separately on JazzProfiles.com.

Scofield's debut as a leader came out of a 1977 session cut in Tokyo with drummer Motohiko Hino and trumpeter Terumasa Hino, released the following year in Japan as the self-titled John Scofield (Trio Records). A second date, Shinola, followed in 1982 on Enja, recorded live in Munich with bassist Steve Swallow and drummer Adam Nussbaum. That same year brought the turn that made him widely known: from 1982 to 1985, Scofield toured and recorded as a member of Miles Davis's band, contributing guitar and original compositions to three consecutive Davis albums — Star People (1983), Decoy (1984), and You're Under Arrest (1985).

Leaving Davis's band, Scofield signed to Gramavision and spent the back half of the 1980s defining a harder, funkier fusion sound with producer Steve Swallow: Still Warm (1986), Blue Matter (1987), and Loud Jazz (1988), built around the heavy backbeats of drummer Dennis Chambers and bassist Gary Grainger. A move to Blue Note in 1990 pulled him back toward the jazz mainstream without losing the edge. Time on My Hands (1990) paired him with Charlie Haden, Jack DeJohnette, and Joe Lovano; Meant to Be (1991) and What We Do (1993), billed to the John Scofield Quartet, again featured Lovano alongside bassist Marc Johnson or Dennis Irwin and drummer Bill Stewart; and Grace Under Pressure (1992) put him in the studio with Haden again, this time alongside fellow guitarist Bill Frisell — a pairing still cited as one of the era's most striking two-guitar jazz records. Hand Jive (1994) brought in saxophonist Eddie Harris for an organ-trio-flavored session, and 1996's Quiet, a mostly acoustic, horn-arranged date for Verve, featured a guest turn from Wayne Shorter on tenor saxophone — Shorter's own career, and this session together, are covered separately on this project.

Scofield's move to Verve in the late 1990s opened his most genre-crossing decade. A Go Go (1998) teamed him with the organ trio Medeski, Martin & Wood for a loose, groove-driven session that became one of his best-known records and the start of a long-running, on-and-off collaboration with the trio; Bump (2000) and Works For Me (2000, with Kenny Garrett, Christian McBride, and Billy Higgins) worked similar and more straight-ahead ground, respectively. Überjam (2002) and Up All Night (2003), both billed to the John Scofield Band with bassist Jesse Murphy or Andy Hess and drummer Adam Deitch, pushed further into electronic-tinged funk, while 2003's Scorched — a large-ensemble reworking of Scofield material by composer Mark-Anthony Turnage for the hr-Bigband, recorded live in Frankfurt — went the opposite direction entirely. That's What I Say (2005), a tribute to Ray Charles with guest vocalists including Aaron Neville, Mavis Staples, and John Mayer, closed out the Verve run.

The Medeski, Martin & Wood collaboration continued as its own entity: billed as Medeski Scofield Martin & Wood, the full quartet recorded Out Louder (2006, Indirecto Records) and Juice (2014, Indirecto Records) — both catalogued on Discogs under a separate group identity from Scofield's own artist page, the same kind of split entity that has tripped up other discography research in this project. Alongside that, Scofield's 2006–2013 run on EmArcy included This Meets That (2007), the New Orleans gospel session Piety Street (2009, with George Porter Jr.), the Metropole Orchestra collaboration 54 (2010), the ballad-focused A Moment's Peace (2011), and Überjam Deux (2013), a return to the funkier Scofield Band sound.

A move to Impulse! brought Scofield his greatest recognition industry-wide. Past Present (2015), reuniting him with Joe Lovano alongside Larry Grenadier and Bill Stewart, won the Grammy Award for Best Jazz Instrumental Album at the 58th Grammy Awards in February 2016. Country for Old Men (2016), a country-songbook album with Steve Swallow, Larry Goldings, and Bill Stewart tackling material by Hank Williams, Dolly Parton, George Jones, and others, won two Grammys at the 59th Awards in February 2017 — Best Jazz Instrumental Album and Best Improvised Jazz Solo, for his playing on "I'm So Lonesome I Could Cry." Those three wins make him a three-time Grammy winner overall.

In 2017 Scofield joined drummer Jack DeJohnette, keyboardist John Medeski, and bassist Larry Grenadier — Grenadier's own career covered separately on this project — in the co-led supergroup Hudson, whose self-titled Motéma Records debut reworked songs by Bob Dylan, Joni Mitchell, and Jimi Hendrix alongside original material, all loosely tied to the Woodstock, New York region the band took its name from. He returned to Verve for Combo 66 (2018) with pianist Gerald Clayton, then moved to ECM for a trio of records with producer Manfred Eicher: Swallow Tales (2020), reuniting him again with Steve Swallow and Bill Stewart; a self-titled 2022 album of solo electric guitar built around live looping; and Uncle John's Band (2023), a trio session with bassist Vicente Archer and Bill Stewart drawing on material from the Grateful Dead, Bob Dylan, and Miles Davis alongside jazz standards.

Beyond the recording catalog, Scofield holds an honorary doctorate from Berklee College of Music (1997), received the Festival International de Jazz de Montréal's Miles Davis Award in 1998, was named a Chevalier of the French Ordre des Arts et des Lettres in 2010, and has taught on the jazz faculty at NYU's Steinhardt School. A documentary on his life and career, Inside Scofield, was released in 2022. Across five decades and more than three dozen albums as a leader, he remains one of the most stylistically restless guitarists jazz has produced — equally at home in a horn-driven post-bop quartet, a funk power trio, or a big band.

Scofield's playing is built around a warm, slightly overdriven guitar tone and a bent, vocal-like phrasing that owes as much to blues and R&B guitarists as it does to jazz. His harmonic language reflects his Miles Davis years — spare, riff-based, comfortable with dissonance — while his rhythmic sensibility, especially from the Gramavision and Medeski Martin & Wood periods onward, pulls directly from funk and soul. That combination of bebop-literate harmony with a guitarist's grit and groove places him alongside Pat Metheny and Bill Frisell as one of the defining post-1970s voices on the instrument, though Scofield's music has stayed closer to the blues and to the backbeat than either of theirs.