Augustus I

Augustus I may refer to:


 * Augustus, Elector of Saxony (1526–1586)
 * Augustus I, Duke of Brunswick-Lüneburg (1568–1636)
 * Augustus, Grand Duke of Oldenburg (1783–1853)
 * Sigismund II Augustus (1520–1572), King "Augustus I" of Poland and Grand Duke of Lithuania
 * (c. 1766–c. 1835), French engraver