Ernest Augustus or Ernst August may refer to:

Royalty

House of Hanover

* Ernest Augustus, Elector of Hanover (1629–1698), father of King George I of Great Britain * Ernest Augustus, Duke of York and Albany, Prince-Bishop of Osnabrück, son of the previous *

Ernest Augustus, King of Hanover Ernest Augustus (german: Ernst August; 5 June 177118 November 1851) was King of Hanover from 20 June 1837 until his death in 1851. As the fifth son of King George III of the United Kingdom and Hanover, he initially seemed unlikely to become a ...

(1771–1851), son of King George III of the United Kingdom *

Ernest Augustus, Crown Prince of Hanover en, Ernest Augustus William Adolphus George Frederick , house = Hanover , father = George V of Hanover , mother = Marie of Saxe-Altenburg , birth_date = , birth_place = Hanover, Kingdom of Hanover , death_date = , death_place = Gmunden ...

, (1845–1923), son of George V of Hanover * Ernest Augustus, Duke of Brunswick (1887–1953), son of the previous * Prince Ernest Augustus of Hanover (1914–1987), son of the previous * Prince Ernst August of Hanover (born 1954), son of the previous * Prince Ernst August of Hanover (born 1983), son of previous

House of Wettin

* Ernest Augustus I, Duke of Saxe-Weimar-Eisenach (1688–1748) *

Ernest Augustus II, Duke of Saxe-Weimar-Eisenach Ernst August II Konstantin, Duke of Saxe-Weimar-Eisenach (2 June 1737 – 28 May 1758), was a duke of Saxe-Weimar-Eisenach. Early life He was the second (fifth in order of birth) but eldest and only surviving son of Ernst August I, Duk ...

(1737–1758), son of the previous

Other

* Ernst August (ship), a ship named after Ernest Augustus, King of Hanover {{human name disambiguation