For the historical county see Fejér (former county).

Fejér is the name of an administrative county (comitatus or megye) in Central Hungary. It lies on the west bank of the river Danube and nearly touches the eastern shore of Lake Balaton. It shares borders with the Hungarian counties Veszprém, Komárom-Esztergom, Pest, Bács-Kiskun, Tolna and Somogy. The capital of Fejér county is Székesfehérvár.