Bernhard IV, Prince of Anhalt-Bernburg

Bernhard IV (died 1354) was a German prince of the House of Ascania and ruler of Anhalt-Bernburg. The eldest son of Bernhard III and Agnes of Saxe-Wittenberg, he succeeded his father as sole ruler in 1348.

He also styled himself Margrave of Landsberg, although the Wettins had bought it back in 1347. Betrothed to Beatrix, daughter of the Margrave of Meissen, but never married, he died in 1354 and was succeeded by his brother Henry.