Bezirk Liezen (German: [ˈliːt͡sn̩], local dialect [liːɐ̯t͡sn̩]) is a district of the state of Styria in Austria.

It is by far the largest district in Austria, about 1.2 times the size of the next district, and is divided into two "subdistricts": Bereich Liezen, and Expositur Gröbming.

On December 31, 2011 the former third subdistrict Expositur Bad Aussee was abolished.

Since the 2015 Styria municipal structural reform, it has consisted of the following municipalities:[1] Bereich Liezen: Expositur Gröbming: Towns (Gemeinden) are indicated in boldface; suburbs, hamlets and other subdivisions of a municipality are indicated in small characters.