拉辛县（Racine County, Wisconsin）是美国威斯康辛州东南部的一个县，东临密歇根湖。面积2,051平方公里。根据美国2000年人口普查，共有人口188,831人。县治拉辛 (Racine)。

成立于1836年12月7日。县名来自鲁特河，是法语「根」的意思。

Racine County is a county located in southeastern Wisconsin. As of the 2010 census, its population was 195,408, making it the fifth-most populous county in Wisconsin. Its county seat is Racine. The county was founded in 1836, then a part of the Wisconsin Territory.