Rypin County (Polish: powiat rypiński) is a unit of territorial administration and local government (powiat) in Kuyavian-Pomeranian Voivodeship, north-central Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Rypin, which lies 56 km (35 mi) east of Toruń and 98 km (61 mi) east of Bydgoszcz.

The county covers an area of 587.08 square kilometres (226.7 sq mi). As of 2019 its total population is 43,618, out of which the population of Rypin is 16,227 and the rural population is 27,391.

Rypin County is bordered by Brodnica County to the north, Żuromin County to the east, Sierpc County to the south-east, Lipno County to the south-west and Golub-Dobrzyń County to the west.

The county is subdivided into six gminas (one urban and five rural). These are listed in the following table, in descending order of population.

Gmina	Type	Area (km)	Population (2019)	Seat
Rypin	urban	11.0	16,227
Gmina Rypin	rural	131.9	7,498	Rypin *
Gmina Skrwilno	rural	124.4	5,872	Skrwilno
Gmina Brzuze	rural	86.3	5,308	Brzuze
Gmina Rogowo	rural	139.8	4,729	Rogowo
Gmina Wąpielsk	rural	93.8	3,984	Wąpielsk
* seat not part of the gmina