The canton of Haute-Ariège is an administrative division of the Ariège department, southern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Ax-les-Thermes.

It consists of the following communes:

Albiès Appy Artigues Ascou Aston Aulos-Sinsat Axiat Ax-les-Thermes Bestiac Bouan Les Cabannes Carcanières Caussou Caychax-et-Senconac Château-Verdun Garanou L'Hospitalet-près-l'Andorre Ignaux Larcat Larnat Lassur Lordat Luzenac Mérens-les-Vals Mijanès Montaillou Orgeix Orlu Ornolac-Ussat-les-Bains Pech Perles-et-Castelet Le Pla Prades Le Puch Quérigut Rouze Savignac-les-Ormeaux Sorgeat Tignac Unac Urs Ussat Vaychis Vèbre Verdun Vernaux

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