Antti Lähdesmäki (born 1990, Äänekoski) is a musician working actively and diversely within the Scandinavian music scene. In a jazz context, Lähdesmäki can be heard as the pianist of the Swedish band SUPERHEAVY., among his own bands. He has also founded Summer Jazz Club in Jyväskylä and acted as a curator of the jazz programme of the Ääniä festival.