List of Famous people named Gustavus

Gustavus Adolphus, also known in English as Gustav II Adolf or Gustav II Adolph, was King of Sweden from 1611 to 1632, and is credited for the rise of Sweden as a great European power. During his reign, Sweden became one of the primary military forces in Europe during the Thirty Years' War, helping to determine the political and religious balance of power in Europe. He was formally and posthumously given the name Gustavus Adolphus the Great by the Riksdag of the Estates in 1634.

Gustavus Hamilton, 1st Viscount Boyne PC (Ire) (1642–1723) fought for the Prince of Orange during the Williamite War in Ireland defending Coleraine in 1689, fighting at the Battle of the Boyne in 1690, fording the Shannon at the second Siege of Athlone in June 1691, and fighting at Aughrim in July. He was ennobled by King George I.