Catherine Delaunay (born 31 October 1969) is a French jazz clarinet player and composer, best known as a leader of Y'en a qui manquent pas d'air.

She studied the clarinet with Jacques Di Donato (where she passed the Diplôme National d'Etudes Supérieures Musicales of clarinet in 1993), Chamber Music with Jacques Aboulker (where she passed the Certificat d'Etudes Spécialisées of chamber music in 1993), Contemporary music (where she passed the Certificat d'Etudes Complémentaires Spécialisées "Atelier instrumental du XXème siècle" in 1993), Composition, Musical Analysis and Harmony with Loïc Mallié, and 5 keys clarinet and chalumeau with Jean-Claude Veilhan (where she passed the Certificat d'Etudes Complémentaires Spécialisées de clarinet ancienne et chalumeau in 1995).

Since 2000, Catherine Delaunay has been leading and composing music for the French fanfare "Y'en a qui manquent pas d'air",[6] in which she plays with Lionel Martin (saxophone), Daniel Casimir (trombone), Didier Havet (sousaphone), and Tatiana Lejude (drums).

With Pierre Badaroux on double bass, Catherine Delaunay sets to music silent films like Lotte Reiniger's The Adventures of Prince Achmed (Die Abenteuer des Prinzen Achmed, 1926), Dziga Vertov's Man with a Movie Camera (1928), and Vsevolod Pudovkin Chess Fever (La Fièvre des échecs, 1925).

[17] Catherine Delaunay played with many musicians, including Tony Hymas, Nathan Hanson, Donald Washington, Doan Brian Roessler, Simon Goubert, Steve Coleman, Matt Wilson, Daniel Goyone, Claude Tchamitchian, Serge Lazarevitch, Lucia Reccio, Denis Chancerel, Philippe Botta, Archimusic, Dave Burrell, Takayuki Kato, Nobuyoshi Ino, Yuri Kusetsov, Vladimir Volkoff, and Bruno Tocanne.