古丁县（Gooding County, Idaho）是美国爱达荷州中部的一个县。面积1,901平方公里。根据美国人口调查局2005年估计，共有人口14,461人 (美国2000年人口普查数字为14,155人)。县治古丁 (Gooding)。

成立于1913年1月28日。县名纪念第七任州长、参议员法兰克·罗伯特·古丁 (Frank R. Gooding)。

Gooding County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 15,464. Its county seat is Gooding. The county was created by the Idaho Legislature on January 28, 1913, by a partition of Lincoln County. It is named for Frank R. Gooding, an early 20th Century governor and United States Senator from Idaho.