Międzyrzecz County (Polish: Powiat międzyrzecki) is a unit of territorial administration and local government (powiat) in Lubusz Voivodeship, western 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 largest town is Międzyrzecz, which lies 48 km (30 mi) south-east of Gorzów Wielkopolski and 68 km (42 mi) north of Zielona Góra. The county also contains the towns of Skwierzyna, lying 19 km (12 mi) north of Międzyrzecz, and Trzciel, 25 km (16 mi) south-east of Międzyrzecz.
The county covers an area of 1,387.61 square kilometres (535.76 sq mi). As of 2019 its total population is 57,851, out of which the population of Międzyrzecz is 17,994, that of Skwierzyna is 9,671, that of Trzciel is 2,391, and the rural population is 27,795.
The county is subdivided into six gminas (three urban-rural and three rural). These are listed in the following table, in descending order of population.
