Maria Kalaniemi (born 1964) is a Finnish accordionist. She was originally classically trained, but has become mostly as folk musician having played this music from childhood, besides her classical music studies, and also at the folk music department of the Sibelius Academy. Groups she is or has been involved with are: * Niekku, formed during the years at the Sibelius Academy: Before they disbanded, they recorded three albums. * Aldargaz