Niki Demiller is a Paris-based film music composer originally from Bordeaux. Drawing on his garage-rock roots and influenced by Brian Eno, François de Roubaix and Philip Glass, he develops a powerful and intimate musical style. Trained in classical orchestration, he invokes a strong emotional intensity while exploring the territories of minimalism.

At the age of 17, he took to the stage at Le Zénith in Paris with his group Les Brats, supporting Iggy & The Stooges. This experience led him to the cinema: he played in Je vous hais petites filles (Sedna) by Yann Gonzalez and composed the theme for La Danseuse. The film was selected for the Directors' Fortnight at the Cannes Festival.

​

In 2024, his composition for the feature film Poster Boy (Acqua Alta, So-Cle) by Laurence Garret and Juan Manuel Sepulveda earned him a nomination for the Sony avant-son prize at the Sœurs Jumelles Festival. The same year, he won the Sacem prize for best music for Une Étoile Rouge Ne Meurt Jamais (Sonique) at the Paris Podcast Festival and created the sound identity for Fantasia, a Arte Studio programme.

He composed the soundtrack for Langue Maternelle (Golgota) by Mariame N'Diaye, a closed-door film combining piano, strings and Soninke songs, which won Best Francophone Film at the Dakar Court Festival. His taste for experimentation led him to write the orchestral score for Simon Frenay's musical Youssou et Malek (La Belle Affaire), in collaboration with rapper Kohndo from La Cliqua.

With a passion for genre cinema, he creates soundscapes combining classical instrumentation and electronic experimentation. His collaborations include S.O.S. (Qui Vive !) by Sarah Hafner, Un Monde Sans Crise (La Belle Affaire) by Ted Hardy-Carnac, Les Jours Heureux (Orphée Films) by Johanna Legrand and Hélène et les filles (Capricci) by Claire Bonnefoy.

A prizewinner in the Trio and Crescendo programmes run by the Maison du Film and Émergence, and resident at the CECI Moulin d'Andé and So Film, he has been selected for the Talent Village at the Arcs Film Festival in 2024 and is one of the Talents at La Fête du Court Métrage in 2025.