Pirineus State Park, State park in Goiás, Brazil

Pirineus State Park covers 2,833 hectares across Pirenópolis, Cocalzinho de Goiás and Corumbá de Goiás. Its terrain is sandstone and quartzite rock from the Precambrian, holding cerrado rupestre vegetation with endemic cacti, orchids and bromeliads, plus forests and grasslands. The Pico dos Pireneus reaches 1,385 metres and carries a masonry chapel dedicated to the Holy Trinity.

The park was established in 1987 to protect the Picos de Pirineus mountain range from development. Scientific exploration and surveys of the area date back to 1892, marking early interest in the region's natural features.

The park's name is often misspelled "Pirineus" instead of the correct "Pireneus". Local guides from Pirenópolis, though not mandatory, are advisable because there are no signposts or marked trails to the most attractive spots. The summit chapel, dedicated to the Holy Trinity, holds an annual mass; the first was held on 18 June 1927 with 35 people.

The park is reached by a dirt road, 20 km from Pirenópolis and 6 km from Cocalzinho de Goiás. There are no signposts or marked trails, so a local guide is advisable though not required. It is open 8am to 5pm, or 9am to 8pm during daylight saving time; domestic animals, hunting, fishing, fires and alcohol are prohibited.

A small masonry chapel dedicated to the Holy Trinity stands at the summit of Pico dos Pireneus. A wooden chapel was raised there in 1927 and its first mass drew 35 people; a gale destroyed it in 1935, and the masonry chapel built the same year still stands.