Fontrailles (French pronunciation: [fɔ̃tʁaj]; Occitan: Fontralha) is a commune in the Hautes-Pyrénées department in south-western France.

The commune belongs to the canton of Les Coteaux and the arrondissement of Tarbes.

The inhabitants are called Fontraillais and Fontraillaises.

The area is 9.0 square kilometers.

This Hautes-Pyrénées geographical article is a stub.