Kaltern an der Weinstraße (Austrian German: [ˈkaltɐn an deːɐ̯ ˈvaɪnˌʃtraːsɛ]; Italian: Caldaro sulla Strada del Vino [kalˈdaːro sulla ˈstraːda del ˈviːno]), often abbreviated to Kaltern or Caldaro, is a municipality and a village in South Tyrol in northern Italy.

As of 30 November 2010, it had a population of 7,592 and an area of 47.9 square kilometres (18.5 sq mi).

[3] It is famous for its lake, the Kalterer See, and wine (Kalterersee Auslese or Lago di Caldaro scelto).

The municipality of Kaltern contains the frazioni (subdivisions, mainly villages and hamlets) Altenburg (Castelvecchio), Oberplanitzing (Pianizza di Sopra), Unterplanitzing (Pianizza di Sotto), St. Josef am See (San Giuseppe al Lago), St. Anton/Pfuss (San Antonio/Pozzo), St. Nikolaus (San Nicoló) and Mitterdorf (Villa di Mezzo).

The coat of arms, used by the end of the 16th century, is a copper kettle with a handle on argent background.