Tryavna Municipality (Bulgarian: Община Трявна) is a municipality (obshtina) in Gabrovo Province, North-central Bulgaria, located on the northern slopes of the central Stara planina mountain to the area of the so-called Fore-Balkan.

It is named after its administrative centre - the town of Tryavna.

The municipality embraces a territory of 255 km2 (98 sq mi) with a population of 12,461 inhabitants, as of December 2009.

[1] The area is best known with the Bulgarian National Revival architectural complex in the main town.

According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following: