Wenceslaus I of Zator

Wenceslaus I
Duke of Zator, Oświęcim
Coat-of-arms of Upper Silesia (Opole, Oświęcim, Zator, etc).
Bornc. 1418
Diedbefore 29 July 1468
Noble familySilesian Piasts of Opole
Spouse(s)Maria Kopczowska
IssueCasimir II
Wenceslaus II
Jan V
Władysław
Sophie
Katharina
Agnes
FatherCasimir I of Oświęcim
MotherAnna of Żagań

Wenceslaus I of Zator (Polish: Wacław I zatorski; c. 1418 – before 29 July 1468), was a Duke of Oświęcim during 1434–1445 (with his brothers as co-rulers) and Duke of Zator from 1445 until his death.

He was the eldest son of Duke Casimir I of Oświęcim by his first wife Anna, daughter of Duke Henry VIII of Żagań.