Jan Lundgren was born March 22, 1966, in Olofström, Blekinge County, Sweden, and grew up in nearby Ronneby. He began playing piano at age five and spent years in classical training before discovering jazz more or less by chance in the late 1980s, absorbing the tradition from Oscar Peterson and Erroll Garner through Bud Powell and Bill Evans. In 1986 he moved to Malmö to study at the Malmö Academy of Music, graduating in 1991 and later joining the faculty himself as a senior lecturer, a position he has held continuously since.

Lundgren's grounding in the Swedish jazz tradition came directly from its elders. Early in his career he played alongside saxophonist Arne Domnérus, clarinetist Putte Wickman, and guitarist Rune Gustafsson — appearing as a sideman on Domnérus-led dates including Himlajord (1996) and Easy Going (1997, billed to "The Arne Domnérus Quartet Featuring Jan Lundgren"), records that mark him as a promising young accompanist rather than yet a leader in his own right.

That changed quickly. His debut as a leader, Conclusion (Four Leaf Clover Records), followed by the quintet date Bird of Passage (1996, with trumpeter Anders Bergcrantz and saxophonist Rich Perry), established him as a bandleader. In 1995 he formed a trio with bassist Mattias Svensson and drummer Rasmus Kihlberg; their 1997 album Swedish Standards (Sittel Records) became the breakthrough, entering the pop charts and winning Orkesterjournalen's Gyllene Skivan ("Golden Disc") for Year's Best Jazz Album. Around 2000, Danish drummer Morten Lund — whose own career is covered in full in his JazzProfiles.com profile — replaced Kihlberg in the trio, a change documented on record by 2003's Svenska Landskap; Zoltán Csörsz Jr. took the drum chair when Lundgren revived the trio in 2008 for European Standards. In parallel, through the 2000s, Lundgren led a separate Copenhagen-rooted trio with bassist Jesper Lundgaard and drummer Alex Riel — heard on Lonely One, Perfidia, A Swinging Rendezvous, and Plays Cole Porter Love Songs — recorded largely for the Japanese market on the M&I and Marshmallow Export labels and a significant part of why his catalog runs so deep there.

Since the mid-2000s his most celebrated project has been the Mare Nostrum trio with French accordionist Richard Galliano — whose own career is covered in full in his JazzProfiles.com profile — and Sardinian trumpeter Paolo Fresu. Named for the Latin "our sea," the trio built a shared Mediterranean musical language across three home countries, debuting on ACT Music in 2007 and returning for Mare Nostrum II (2016), Mare Nostrum III (2019), and Mare Nostrum IV (2025, recorded in France that preceding fall) — a recording relationship spanning nearly two decades.

Lundgren's discography as a leader runs to dozens of albums, ranging from the ACT-label triptych The Ystad Concert (A Tribute to Jan Johansson) (2016, with Svensson and the Bonfiglioli Weber String Quartet, recorded live at Ystad Teater) to Potsdamer Platz (2017, an all-Nordic quartet with Finnish saxophonist Jukka Perko, Swedish bassist Dan Berglund, and Morten Lund on drums), his first solo piano statement Man in the Fog (2013, Bee Jazz, released after nearly forty albums as leader or co-leader), the American-recorded solo album All by Myself (2014, Fresh Sound, cut at Entourage Studios in Hollywood), the Nils Landgren duo record Kristallen (2020), the trio session Into the Night (2021, with Lars Danielsson and Emile Parisien, recorded live at his own Ystad Sweden Jazz Festival), and the piano-bass duo The Gallery Concerts II (Jazz Poetry) (2022, with Hans Backenroth, curated by ACT founder Siegfried Loch). He has also appeared as a featured pianist on other bandleaders' projects, including Wolfgang Haffner's Kind of Spain (2017).

Beyond performing and recording, Lundgren is a significant institutional figure in Nordic jazz. In 2007 he became the first and, to date, only Nordic jazz pianist named a Steinway Artist. In 2010 he co-founded the Ystad Sweden Jazz Festival with Thomas Lantz and serves as its artistic director, a role he also holds at the associated Ystad Winter Piano Fest, and since December 2016 he has been artistic director of Jazzhus Montmartre, the storied jazz club in Copenhagen.

That combination of festival programmer, club director, and touring pianist has kept Lundgren at the center of the European jazz circuit for three decades running, even as his own recording pace has barely slowed: the 2020s alone have brought Kristallen, Into the Night, The Gallery Concerts II, and Mare Nostrum IV, spanning duo, trio, and reunited-trio formats within a five-year span. His catalog's range — American songbook trio dates, solo piano recitals, a Mediterranean co-led trio, and a string-quartet tribute to a national forebear — reflects an unusually versatile career built on the same lyrical touch throughout, whether he's interpreting Cole Porter in Copenhagen or Jan Johansson's Swedish folk melodies at his own festival's home stage in Ystad, the town where he has lived since 2005.

Lundgren's playing pairs a classically trained touch with deep fluency in the American and European songbooks — a lyrical, tradition-rooted style built on Oscar Peterson, Erroll Garner, Bud Powell, and Bill Evans, filtered through a Nordic sensibility absorbed from his years in the Swedish jazz scene. Reviewers have singled out his clarity of articulation and effortless technical range, and his own website frames him as "a pioneer of the Great European Songbook" — a fitting description for a pianist equally at home interpreting American standards, French chanson (in Mare Nostrum), and Swedish folk material (in tribute to countryman Jan Johansson), without ever losing the singing, unhurried quality that runs through all of it.