Duke Wolfgang of Brunswick-Grubenhagen (1531–1595) was the Prince of Grubenhagen from 1567 to 1595. Wolfgang was born on 6 April 1531 in Herzberg, the fifth son of Duke Philip I of Brunswick-Grubenhagen and his second wife, Catherine of Mansfeld. He succeeded his brother, Ernest as Duke in 1567, governing the tiny Principality of Grubenhagen. Like most of his predecessors, he had financial problems, so he was often forced to sell or pledge major parts of his possession and he had to demand high taxes.