Bad Vigaun is a municipality and spa town in the district of Hallein, in the Austrian state of Salzburg.

The municipality has access to the Salzburg-Tyrol Railway line and the S-Bahn Salzburg network at Bad Vigaun station as well as to the Tauern Autobahn (A10) at the Hallein junction.

Possibly derived from Latin: vicus, the place was already settled in Roman times, when the area was part of the Noricum province.

The local parish was documented in land register issued by Bishop Arno of Salzburg in the late 8th century.

The municipality was awarded the official status of a spa town (Bad) by resolution of the Salzburg state government in 2002.