Barillas is a municipality located in the Huehuetenango department in northwestern Guatemala. It is situated in a mountainous region of the western highlands.
As a municipality in Huehuetenango, Barillas forms part of one of Guatemala's largest departments by area. The municipality, like others in the region, is predominantly populated by indigenous Maya communities. The local economy is primarily based on agriculture, with the highland terrain supporting traditional farming practices common to the area.
Barillas remains a small municipality with limited international tourist infrastructure, typical of many rural communities in Guatemala's western highlands. Access to the municipality is by road through the mountainous terrain of Huehuetenango.