Sébastien Charlier (Beaumont-sur-Oise, 1971) is a French diatonic harmonica player. He plays chromatically, in all keys, on a single blues harp. His music is inspired by many different influences, from Blues to Jazz, from Fusion to Electro-Pop. He has also written two textbooks: Je débute l'harmonica and Méthode en poche harmonica.