Braniewo County (powiat braniewski) is a unit of territorial administration and local government (powiat) in Warmian-Masurian Voivodeship, northern Poland, on the border with Russia. 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 Braniewo, which lies 80 km north-west of the regional capital Olsztyn. The county also contains the towns of Pieniężno, lying 27 km south-east of Braniewo, and Frombork, 11 km west of Braniewo.
The county covers an area of 1204.54 km2. As of 2019 its total population is 41,223, out of which the population of Braniewo is 17,875, that of Pieniężno is 2,271, that of Frombork is 2,332, and the rural population is 19,130.
Braniewo County is bordered by Bartoszyce County and Lidzbark County to the east, and Elbląg County to the south-west. It also borders Russia (Kaliningrad Oblast) to the north.
