卢丹（法语：Loudun）是法国普瓦图-夏朗德大区 维埃纳省的一个市镇，属于沙泰勒罗区 卢丹县。该市镇2009年时的人口 为7089人。

卢丹人口变化图示

数据来源：INSEE

Loudun (/luːˈdʌn/; French pronunciation: ​[lu.dœ̃]) is a commune in the Vienne department in the Poitou-Charentes region in western France.

It is located 30 km (19 mi) south of the town of Chinon and 25 km to the east of the town Thouars. The area south of Loudun is the place of origin of a significant portion of the Acadians, one of the early founding people of New France in Canada.