Pułtusk County (Polish: powiat pułtuski) is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland.

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

Its administrative seat and only town is Pułtusk, which lies 54 kilometres (34 mi) north of Warsaw.

The county covers an area of 828.63 square kilometres (319.9 sq mi).

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