Wenden Voivodeship (Polish: Województwo wendeńskie,[1] Lithuanian: Vendeno vaivadija[2]) was a unit of administrative division and local government in the Duchy of Livonia, part of the Polish–Lithuanian Commonwealth.

The voivodeship remained in the Commonwealth until the Swedish Empire's conquest of Livonia in the 1620s.

The unconquered remainder of Livonia was named Inflanty Voivodeship, and continued to be part of the Commonwealth until its first partition in 1772.

Even though it no longer belonged to the Commonwealth after the Swedish conquest, its voivodes continued to be named by Polish kings until the final partition of Poland (1795), as the so-called "fictitious titles" (Polish: urzędy fikcyjne).

Major cities, towns and castles of Wenden Voivodeship were: Cēsis (Kies, Wenden), Riga, Koknese (Kokenhausen), Salaspils (Kircholm), Daugavpils (Dyneburg), Rēzekne (Rzezyca, Rositten), Viļaka (Marienhausen), Gulbene (Schwanenburg), Ludza (Lucyn), Krustpils (Kreutzburg).