Maramureș County (Romanian pronunciation: [maraˈmureʃ] ^ⓘ) is a county (județ) in Romania, in the Southern Maramureș region. The county seat is Baia Mare.

In Hungarian it is known as Máramaros megye, in Ukrainian as Мараморо́щина, in German as Kreis Marmarosch, in Rusyn as Мараморош, and in Yiddish as מאַרמאַראָש.

Maramureș County is situated in the northern part of Romania, in the historical region of Transylvania, and has a border with Ukraine. This county has a total area of 6,304 square kilometres (2,434 sq mi), of which 43% is covered by the Rodna Mountains, with its tallest peak, Pietrosul [ro], at 2,303 metres (7,556 ft) altitude.

Together with the Gutâi and Țibleș mountain ranges, the Rodna mountains are part of the Eastern Carpathians. The rest of the county are hills, plateaus, and valleys. The county is crossed by Tisa River and its main tributaries: the Iza, Vișeu, and Mara rivers.

The neighbouring territorial units, both Romanian and foreign, to Maramureș County are listed below:

Maramureș County has 2 municipalities, 11 towns and 63 communes.

Maramureș is known for its pastoral and agricultural traditions, largely unscathed by the industrialisation campaign carried out during Romania's communist period. Ploughing, planting, harvesting, and hay making and handling are mostly done through manual labour. The county is also home to a strong mining industry of extraction of metals other than iron. The industrial plants built around Baia Mare during the communist period heavily polluted the area in the past, but recently, due to the decline of the city's industrial activity, the area has become less polluted.

The region is known for its beautiful rural scenery, local small woodwork and craftwork industry as well as for its churches and original rural architecture. There are not many paved roads in the rural areas, but most of them are usually accessible.