Jacqueline (Dutch: Jacoba van Beieren; French: Jacqueline de Bavière; 16 August 1401 – 8 October 1436) is Duchess of Bavaria-Straubing, Countess of Holland and Zeeland and Countess of Hainaut from 1417 to 1433.

She is also Dauphine of France for a short time between 1415 and 1417 and Duchess of Gloucester in the 1420s, if her marriage to Humphrey, Duke of Gloucester, is accepted as valid.

Jacqueline is the last Wittelsbach ruler of Hainaut and Holland.

Following her death, her estates pass into the inheritance of Philip the Good, Duke of Burgundy.