奥西隆（法语：Aussillon）是法国南部-比利牛斯大区 塔恩省的一个市镇，属于卡斯特尔区 马扎默西南县。该市镇2009年时的人口 为6605人。

奥西隆人口变化图示

数据来源：INSEE

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

The Thoré forms the commune's northern border.

The Château du Thoré is a castle built from 1893 to 1894 by Armand Puech, who invented a water-filter system. It has a very large park, and is still inhabited today.