A voivodeship (/ˈvɔɪvoʊdʃɪp/ VOY-vohd-ship) or voivodate is the area administered by a voivode (governor) in several countries of central and eastern Europe. Voivodeships have existed since medieval times and the area of extent of voivodeship resembles that of a duchy in western medieval states, much as the title of voivode was equivalent to that of a duke. Other roughly equivalent titles and areas in medieval Eastern Europe included ban (bojan, vojin or bayan) and banate.
In a modern context, the word normally refers to one of the provinces (województwa) of Poland. As of 2024[update], Poland has 16 voivodeships.