Beszterce-Naszód was an administrative county (comitatus) of the Kingdom of Hungary.

Beszterce-Naszód county shared borders with the Kingdom of Romania, Austrian Bukovina and the Hungarian counties of Máramaros, Szolnok-Doboka, Kolozs, Maros-Torda and Csík.

Beszterce-Naszód county was formed in 1876, when the Saxon district of Bistritz/Bistrița was united with the former Transylvanian Military Frontier district of Năsăud (Romanian Border Regiment II), also joined by parts of the former Doboka and Belső-Szolnok counties.

In 1920, the Treaty of Trianon assigned the territory of Beszterce-Naszód county to Romania.

In 1940, by the Second Vienna Award, it was returned to Hungary and was expanded with additional territories from the former Kolozs County.