Máramaros County (German: Komitat Maramuresch; Hungarian: Máramaros vármegye; Latin: Comitatus Maramarosiensis; Romanian: Comitatul Maramureș; Rusyn: Комітат Марамарош; Ukrainian: Kомітат Мармарош) was an administrative county (comitatus) of the Kingdom of Hungary.

[1] Máramaros county shared borders with the Austrian crownlands Galicia (now in Poland and Ukraine) and Bukovina (now in Romania and Ukraine) and the Hungarian counties Bereg, Ugocsa, Szatmár, Szolnok-Doboka and Beszterce-Naszód.

The first mention of the region in the written sources is from 1199 ("cum in Maramorisio tempore venationis venatum ivissemus").

The growth of its population started when the five crown cities (Máramarossziget, Hosszúmező, Huszt, Técső, Visk) were founded in the same century.

The northern part was returned to Hungary by the annexation of the remainder of Carpathian Ruthenia after Czechoslovakia ceased to exist in 1939, however the redeemed territories of the former county remained separate from the administrative branch office of Máramaros.