Christian, Duke of Brunswick-Lüneburg-Wolfenbüttel, German Protestant military leader (born 1599)

Christian the Younger of Brunswick-Wolfenbüttel, known as der tolle Halberstädter, was a German Protestant military leader during the early years of the Thirty Years' War. Christian fought in support of Frederick V of the Palatinate during the "Palatinate Phase" (1620-1623) of the war; his opponents were the forces of the Imperial House of Habsburg, Habsburg Spain, and the Catholic League. Christian was a member of the House of Welf, titular Duke of Brunswick-Lüneburg and administrator of the Prince-Bishopric of Halberstadt