Augustus (63 BC–AD 14), emperor of ancient Rome

Augustus, Elector of Saxony (1526–1588)

Augustus III of Poland (1696–1763), King of Poland and Elector of Saxony

Augustus (honorific), the title generally used by all Roman Emperors

Mount Augustus National Park, a national park in Australia

Augustus II the Strong (1670–1733), King of Poland and Elector of Saxony

Augustus the Younger, Duke of Brunswick-Lüneburg (1579–1666), a Duke within the Holy Roman Empire

Prince Augustus Frederick, Duke of Sussex (1773–1843), son of George III

Augustus Rookwood, a character from the Harry Potter series.

Augustus Gloop, a gluttonous character from the Charlie and the Chocolate Factory.