Toblach (German: [ˈtoːblax]; Italian: Dobbiaco [dobˈbjaːko]) is a comune/Gemeinde (municipality) in South Tyrol in Northern Italy, located in the Puster Valley about 70 kilometres (43 mi) northeast of the city of Bolzano, on the border with Austria.

As of November 30, 2010, it had a population of 3,283 and an area of 126.6 square kilometres (48.9 mi²).

Toblach borders the following municipalities: Gsies, Innichen, Niederdorf, Prags, Auronzo di Cadore, Cortina d'Ampezzo and Innervillgraten (Austria).

The prominent mountain peaks the Tre Cime di Lavaredo (the Drei Zinnen in German) are located nearby. The Drava/Drau also flows from the nearby mountains; other rivers in the comune include the Rienz, which flows from the nearby Toblacher See.

The municipality of Toblach contains the frazioni (subdivisions, mainly villages and hamlets) Aufkirchen/Santa Maria and Wahlen/San Silvestro and the settlement of Schluderbach.

The locality is first being mentioned as in vico Duplago in a document issued by the bishopric of Freising as of 827.

The escutcheon is divided vertically into two parts with a central circle, the colors are red and white alternating. It was the arms of the Lords of Herbstenburg who bought the castle in 1509 and ruled the village. The emblem was granted in 1967.

Here, in a tiny wood cabin in the pine forests close to Toblach, in the summers of 1908–10 Gustav Mahler composed his ninth symphony, the last he completed, and Das Lied von der Erde, and also began work on his tenth symphony.