埃奇菲尔德县（Edgefield County, South Carolina）是美国南卡罗莱纳州西部的一个县，西邻格鲁吉亚州。面积1,312平方公里。根据美国2000年人口普查，共有人口24,595人。县治埃奇菲尔德（Edgefield）。

成立于1785年。县名来自其位置：在印第安人地区和沙瓦纳河边缘。

Edgefield County is a county located on the western border of the U.S. state of South Carolina. As of the 2010 census, its population was 26,985. Its county seat is Edgefield.

Edgefield County has as part of its western border the Savannah River; across the river is Augusta, Georgia. Edgefield is part of the Augusta-Richmond County, GA-SC Metropolitan Statistical Area.