斯奈德县（Snyder County, Pennsylvania）是美国宾夕法尼亚州中部偏东的一个县。面积860平方公里。根据美国2000年人口普查，共有人口37,546。县治密德堡。

成立于1855年3月2日，县名纪念第三任州长西门·斯奈德。

Snyder County is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 39,702. The county seat is Middleburg. Snyder County was formed in 1855 from parts of Union County.

Snyder County comprises the Selinsgrove, PA Micropolitan Statistical Area, which is also included in the Bloomsburg-Berwick-Sunbury, PA Combined Statistical Area.