Suwałki County (Polish: powiat suwalski) is a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, north-eastern Poland, on the Lithuanian border.

It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998.

The county covers an area of 1,307.31 square kilometres (504.8 sq mi).

[1] It includes the protected area known as Suwałki Landscape Park.

These are listed in the following table, in descending order of population.