Johann Bourquenez (b. Besançon, France, 1976) is a pianist and composer based in Geneva, where he settled in 2006, before co-founding the piano trio Plaistow (2007–2017).

His musical language sits at the intersection of jazz, minimalism, and electronic music. In his early career he explored this territory on electric piano (Fender Rhodes) and analogue synthesizer (SH101), before developing a purely acoustic piano approach built on hammered arpeggios generating drone-like resonances, extended techniques including string preparation and left-hand muting, and a compositional method drawing equally from American minimalism and electronic music. His own description of the aesthetic, in The Jazz Mann (2016): "let's pretend we are just a jazz trio but we are actually filled with techno and noise walls, let's make that music but with acoustic instruments." Reviewing Plaistow's Titan in the same piece, Ian Mann credited him with "a truly astonishing piano technique."

Across the next decade, he released a dozen albums and toured internationally. He also led the large ensemble Le Grand Chœur Noise and, alongside French drummer Sylvain Darrifourcq, the electronic duo In Girum.

After several years in Marseille (2018–2020), then Loriol-sur-Drôme (2020–2023), where he engaged in climate activism, agro-ecology, and played guitar, he returned to releasing solo piano work with Jamuary 2023, a self-released collection of miniatures that Richard Williams described in The Blue Moment as "an exploded diagram of the elements that make up his own music." The solo piano album Loriol followed in 2024.

Back in Geneva, he founded the improvised trio BSP (Bourquenez/Santander/Pinca) with Chilean guitarist Raimundo Santander and bassist Massimo Pinca, releasing Transatlantico EP (2026), recorded live during four concerts at Cave de l'AMR.

His most recent project is 692000, a piano trio with drummer Lionel Friedli and bassist Massimo Pinca. Dense, hypnotic, and polyrhythmic — with layered textures, drones, and lyrical solos surfacing at intervals — it occupies familiar ground for those who followed his earlier work: dark, immersive, and uncompromising, with a debut release scheduled for Autumn 2026.