Lambert of Boulogne

Lambert, Count of Boulogne (died 1054), also Count of Lens in Artois, was a French nobleman.

He was the son of Eustace I, Count of Bologne and of Maud de Louvain. He married Adelaide, Countess of Aumale, daughter of Robert I, Duke of Normandy. Lambert was killed at the battle of Lille. He had a daughter, Judith of Lens.