洛萨达（葡萄牙语：Lousada，发音[lowˈzaðɐ]），葡萄牙波尔图区城市，总面积95.98平方公里，总人口4 7387人(2011年)。

洛萨达辖有25个堂区。

Lousada (Portuguese pronunciation: [lowˈzaðɐ]) is a town and municipality of the Porto district, in northern Portugal. The population in 2011 was 47,387, in an area of 96.08 km².