Puch bei Hallein is a municipality in the Hallein District, also known as the Tennengau, in the Austrian state of Salzburg. It lies within the Salzburg region of Austria, in the district centred on the town of Hallein.
The municipality belongs to the Tennengau, one of the districts that make up the state of Salzburg. Its administrative designation places it in the Hallein District, and its name distinguishes it from other places called Puch.