Aussillon is a commune in the Tarn department and Occitanie region of southern France.

The Thoré forms the commune's northern border.

The Château du Thoré is a large country house built in 1893–4 for Armand Puech, industrialist and inventor of a water filtration system.

Surrounded by a very large park, the house is still inhabited today.

This Tarn geographical article is a stub.