Jacqueline of Wittelsbach (16 August 1401 8 October 1436) was Duchess of Bavaria-Straubing, Countess of Hainaut and Holland from 1417 to 1432. She was the only daughter of William VI, Count of Hainaut and Holland from his marriage (born after 16 years of otherwise childless marriage) with Margaret of Burgundy, daughter of Margaret III of Flanders and Philip the Bold. Jacqueline was the last Wittelsbach ruler of Hainaut and Holland. Following her death, the estates passed into the inheritance of Philip the Good.