Almirante Brown Department is the westernmost department of Chaco Province in Argentina.

The provincial subdivision has a population of about 28,000 inhabitants in an area of 17,276 km2, and its capital city is Pampa del Infierno, which is located around 1,265 km from the Capital federal.

The department is named in honour of William Brown (1777 -1857), the Irish born commander in chief of the Argentine Navy.

The city of Pampa del Infierno hosts the annual Fiesta Provincial del Chivo (Provincial Goat Festival).

This article about a place in Chaco Province, Argentina is a stub.