叶尔加瓦县 （Jelgavas rajons、俄语：Елгавский район）是拉脱维亚中南部的一个县。面积1,605.2平方公里。人口37,054人。县治叶尔加瓦为一直辖市。下分1市1镇15村。

Jelgava District (Latvian:Jelgavas rajons) was an administrative division of Latvia, located in Semigallia region, in the country's centre. It was organized into a city, two municipalities and twelve parishes, each with a local government authority. The administrative centre of the district was Jelgava.