Frederick of Brunswick-Lüneburg may refer to:
Frederick I, Duke of Brunswick-Lüneburg (c. 1357–1400) Frederick II, Duke of Brunswick-Lüneburg (1418–1478), also called Frederick the Pious Frederick III, Duke of Brunswick-Lüneburg (1424–1495), also called Frederick the Restless Frederick IV, Duke of Brunswick-Lüneburg (1574–1648) Frederick Ulrich, Duke of Brunswick-Wolfenbüttel (1591–1634) Frederick Charles Ferdinand, Duke of Brunswick-Lüneburg (1729–1809) Frederick William, Duke of Brunswick-Wolfenbüttel (1771–1815)