Yann Tiersen (born 23 June 1970) is a Breton musician. His musical career is split between studio albums, collaborations and film soundtracks. His music involves a large variety of instruments; primarily the guitar, synthesizer or violin together with instruments like the melodica, xylophone, toy piano, harpsichord, accordion and typewriter.

Tiersen is often mistaken for a composer of soundtracks, himself saying "I'm not a composer and I really don't have a classical background", but his real focus is on touring and studio albums which just happen to often be suitable for film. His most famous soundtrack for the film Amélie was primarily made up of tracks taken from his first four studio albums.