Snina District (okres Snina) is a district in the Prešov Region of eastern Slovakia. Until 1918, the district was part of the county of Kingdom of Hungary of Zemplín. It's the easternmost district in Slovakia, and includes the easternmost point of the whole country, Kremenec. Snina, the district's administrative center is the only town in the district, and the easternmost town in Slovakia.

According to the 2011 Census, 29,737 people in the Snina District identified themselves as Slovak, and 4,678 people identified themselves as Ruthenian, and 604 people said they were Ukrainian.^[3] Also according to the 2011 Census 17,996 people identified themselves as Roman Catholic, 7,712 people said they were Greek Catholic, and 7,596 said they were Orthodox.^[4]