瓦特勒洛（法语：Wattrelos）是法国北部-加来海峡大区诺尔省的一个市镇，属于里尔区东鲁贝县、北鲁贝县。该市镇2009年时的人口为41750人。

瓦特勒洛人口变化图示

数据来源：INSEE

Wattrelos (French pronunciation: ​[wa.tʁə.lo]; archaic Dutch:Waterlos) is a commune in the Northern department in the Nord-Pas de Calais region in northern France. It is located on the border with Belgium, northeast of the city of Lille. It the fifth-largest component of the metropolitan Urban Community of Lille Métropole. Wattrelos borders the communes of Roubaix, Tourcoing and Leers in France and the communes of Moeskroen and Steenput in Belgium.