Bernhard I, Prince of Anhalt-Bernburg

Bernhard I (c. 1218–1287) was a prince of the House of Ascania and the second son of Henry I, prince of Anhalt. On Henry's death in 1252 the surviving brothers divided Anhalt under the house law, and Bernhard received Bernburg, founding the Anhalt-Bernburg line.

In 1258 he married Sophie, daughter of King Abel of Denmark. Their sons included John I, who succeeded him, and Bernhard II.