Louis of Namur

Louis of Namur (1325–between 1378 and 1386) was a younger son of John I, Marquis of Namur, and brother of the later marquises of Namur. He held the lordships of Peteghem and Bailleul, and in 1346 he accompanied his brother William to the Battle of Crécy.

He governed Namur during his brother's absence when unrest broke out in 1352, and later fought against the Duke of Brabant. In 1365 he married Isabelle de Pierrepont, heiress of Roucy. The marriage was childless, and Louis died between 1378 and 1386.