卡尤加县（Cayuga County, New York）是美国纽约州中西部的一个县，北邻安大略湖。面积2,237平方公里。根据美国2000年人口普查，共有人口81,963。县治奥本。

成立于1799年。县名来自易洛魁联盟的成员之一卡尤加人。

Cayuga County is a county located in the U.S. state of New York. As of the 2010 census, the population was 80,026. Its county seat is Auburn. The county was named for one of the tribes of Indians in the Iroquois Confederation.

Cayuga County comprises the Auburn, NY Micropolitan Statistical Area, which is also included in the Syracuse-Auburn, NY Combined Statistical Area.