Lääne-Viru County (Estonian: Lääne-Viru maakond), or Lääne-Virumaa, is one of 15 counties of Estonia. It is in northern Estonia, on the south coast of the Gulf of Finland. In Estonian, lääne means western and ida means east or eastern. Lääne-Viru borders Ida-Viru County to the east, Jõgeva County to the south, and Järva and Harju counties to the west.