Lionel Loueke was born April 27, 1973, in Cotonou, Benin, into what he has described as a family of poor intellectuals. He began on percussion around age nine, but it was an older brother's guitar playing that pulled him toward the instrument; he started playing himself at seventeen, listening to George Benson, Kenny Burrell, Joe Pass, and Wes Montgomery on records that reached West Africa only sporadically. It took him a year of saving to earn the $50 for his first guitar. When strings wore out and the replacements had to be bought across the border in Nigeria, he soaked what he had in vinegar to keep them playable, and when they broke outright he substituted bicycle brake cables, damaging the instrument's neck badly enough that he had to find a carpenter to repair it.

He left Benin in 1990 to study at the National Institute of Art in Ivory Coast, then spent 1994 to 1998 at the American School of Modern Music in Paris, where a friend's copy of a George Benson album turned his interest in jazz into a course of study. A scholarship brought him to Berklee College of Music in Boston from 1999 to 2001; it was in student jam sessions there that he met bassist Massimo Biolcati and drummer Ferenc Nemeth, the two musicians who would remain his closest and longest-running collaborators. In 2001 all three were admitted to the Thelonious Monk Institute of Jazz Performance (now the Herbie Hancock Institute of Jazz) in Los Angeles, with Loueke selected in a worldwide audition by a judging panel that included Herbie Hancock, Terence Blanchard, and Wayne Shorter - a selection that turned into an ongoing mentorship rather than a one-time honor.

Loueke, Biolcati, and Nemeth carried their Berklee/Monk Institute partnership forward as Gilfema, a trio built around Loueke's West African guitar and vocal vocabulary, Nemeth's Hungarian-trained percussion sensibility, and Biolcati's harmonic support, with none of the three musicians treating any single tradition as home base. Gilfema's self-titled debut appeared on ObliqSound in 2005. The follow-up, Gilfema + 2 (2008, ObliqSound), expanded the trio with two guests: clarinetist Anat Cohen, who solos on the album's title-adjacent material, and bass clarinetist and ocarina player John Ellis. It is Loueke's own working trio, not a one-off side credit, that put Cohen on record with him. The same three musicians, still billed as the Lionel Loueke Trio, backed Loueke on his major-label debut the same year.

That debut, Karibu (2008, Blue Note), followed two earlier Loueke leader dates - the live In a Trance (2005, Space Time Records) and the ObliqSound advance Virgin Forest (2006), the latter already featuring a guest appearance by Hancock alongside percussionist Cyro Baptista. Karibu punched well above a label debut's usual weight: Hancock guests on piano on "Seven Teens" and "Light Dark," and Shorter guests on soprano saxophone on "Naima" and "Light Dark," with Biolcati and Nemeth anchoring the whole record as Loueke's rhythm section. NPR described the result as a fusion of African music with jazz harmonies, vocal inflections built from Xhosa-inspired clicks (sung phonetically, since Loueke does not speak the language), and complex time signatures. Blue Note kept him on that same trajectory through Mwaliko (2010, guests including Esperanza Spalding, Richard Bona, and Marcus Gilmore), Heritage (2012, produced with Robert Glasper and featuring Mark Guiliana on drums), and Gaïa (2015, produced by Don Was, again with Biolcati and Nemeth, and closing on a cover of the Bee Gees' "How Can You Mend a Broken Heart").

Outside the Blue Note run, Loueke built a parallel career as an in-demand collaborator: sideman dates with Terence Blanchard (Bounce, 2003; Flow, 2005), Charlie Haden (Land of the Sun, 2004), and Hancock again on Possibilities (2006) and River: The Joni Letters (2007), the Joni Mitchell tribute that won Album of the Year and Best Contemporary Jazz Album at the 50th Grammy Awards. In 2016 he co-founded the cooperative quartet Aziza with bassist Dave Holland, saxophonist Chris Potter, and drummer Eric Harland, and the same year appeared as a guest on Jeff Ballard's debut as a leader, Time's Tales (2013), later rejoining Ballard's working band Jeff Ballard Fairgrounds. His album "Kponnon Kpété" won Best Traditional World Song at the 2008 Independent Music Awards, and in 2009 he received a United States Artists Fellowship.

Loueke's most recent decade has run through smaller, more intimate formats: a duo album with pianist Kevin Hays, Hope (2017); The Journey (2018, Aparté), a percussion-and-strings record with no drum set, produced by Robert Sadin and featuring trumpeter Etienne Charles alongside Biolcati and Nemeth; Close Your Eyes (2018, Newvelle), an all-standards trio with bassist Reuben Rogers and Harland, recorded during a single day off between tours with Chick Corea and Hancock; and HH (2020, Edition Records), a solo tribute to Hancock recorded entirely alone on guitar and voice. He and Dave Holland, longtime bandmates in Aziza, released their first record as a duo, United, on Edition in 2024, with the title track composed by Shorter.

Loueke's playing is inseparable from his voice: he sings along with his lines in real time, using clicks, pops, and glottal effects modeled on the sound of Beninese and broader West African vocal traditions rather than any specific language, layering that vocabulary over jazz harmony learned from Benson, Burrell, and Wes Montgomery records and refined under the direct mentorship of Hancock and Shorter. He plays largely on nylon-string and semi-hollow guitars, including a stripped-down Yamaha "silent" practice guitar he has used in performance, and treats the instrument as a full ensemble in miniature - comping, soloing, and vocalizing rhythm and bass parts simultaneously. That combination made him, in Hancock's own description, "a musical painter," and it is the reason he functions equally well as a chamber-scaled leader (Gilfema, the duo records with Hays and Holland) and as the guitarist embedded inside someone else's band (Hancock's Possibilities and The Imagine Project, Aziza, the Ballard trio) without ever sounding like a conventional sideman. Critics have consistently framed him as one of the defining voices in bringing West African guitar and vocal language into the jazz mainstream rather than treating it as a "world music" novelty layered on top of standard changes.