蒙鲁日（法语：Montrouge）是法国法兰西岛大区上塞纳省的一个市镇，属于安东尼区蒙鲁日县。该市镇2009年时的人口为48410人。

蒙鲁日人口变化图示

数据来源：INSEE

Montrouge (French pronunciation: ​[mɔ̃.ʁuʒ]) is a commune in the southern Parisian suburbs, located 4.4 km (2.7 mi) from the center of Paris, France. It is one of the most densely populated municipalities in Europe. After a long period of decline, the population has increased again in recent years.