Augustus of Brunswick-Lüneburg may refer to:
Augustus the Elder, Duke of Brunswick-Lüneburg (1568–1636), also called Augustus I Augustus the Younger, Duke of Brunswick-Lüneburg (1579–1666), also called Augustus II Augustus William, Duke of Brunswick-Wolfenbüttel (1662–1731) Augustus William, Duke of Brunswick-Bevern (1715–1781) William Augustus, Duke of Brunswick-Harburg (1564–1642) Rudolph Augustus, Duke of Brunswick-Wolfenbüttel (1627–1704) Ernest Augustus, Elector of Brunswick-Lüneburg (1629–1698)