Szabolcs-Szatmár-Bereg is the name of an administrative county (comitatus or megye) in north-eastern Hungary, on the border with Slovakia, Ukraine and Romania. It shares borders with the Hungarian counties Hajdú-Bihar and Borsod-Abaúj-Zemplén. The capital of Szabolcs-Szatmár-Bereg county is Nyíregyháza.
Szabolcs-Szatmár-Bereg county was created after World War II from the pre-1938 counties Szatmár-Ugocsa-Bereg and Szabolcs. Before approx. 1990, it was called Szabolcs-Szatmár county.