The Bezirk Hallein is an administrative district (Bezirk) in the federal state of Salzburg, Austria, and congruent with the Tennengau region.
Area of the district is 668.35 km<sup>2</sup>, with a population of 61,660 (Jan. 1, 2023), and population density 92 persons per km<sup>2</sup>. Administrative center of the district is Hallein.
The district is divided into 13 municipalities, one of them is a town, and four of them are market towns.
(population numbers Jan. 1, 2023)