John II of Namur

John II of Namur (c. 1311–1335) was margrave of Namur from 1330 until his death. The eldest son of John I and Marie of Artois, he succeeded in 1330.

In 1332 he joined a league of Low Countries princes against John III, Duke of Brabant, until Philip VI of France mediated an end to the conflict. He never married and died in 1335, leaving an illegitimate son Philip; his brother Guy II succeeded him.