Matilda of Béthune, French countess
Matilda of Béthune (died 8 November 1264), was countess of Flanders by marriage to Guy, Count of Flanders, and heir to the titles Lady of Béthune, of Dendermonde, of Richebourg and of Warneton, as well as Advocatess of the Abbey of Saint Vaast at Arras. She was the mother of Robert, Count of Flanders, known as Robert of Béthune after his mother.