吉里县（Geary County, Kansas，简称GE）是美国堪萨斯州东北部的一个县。面积1,047平方公里。根据美国2000年人口普查，共有人口27,947人。县治章克申城 （Junction City）。

成立于1855年8月30日，原名Davis县，1857年县政府成立，1889年12月28日改名。县名纪念三藩市首任市长、堪萨斯准州州长、宾夕法尼亚州州长约翰·怀特·吉里 （John White Geary）。

Geary County (county code GE) is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 34,362. Its county seat and most populous city is Junction City. The county is named in honor of Governor John W. Geary.

Geary County comprises the Junction City, KS Micropolitan Statistical Area, which is included in the Manhattan-Junction City, KS Combined Statistical Area.