"Gott erhalte Franz den Kaiser" was a personal anthem to Francis II, Emperor of the Holy Roman Empire and later of the Austrian Empire, with lyrics by Lorenz Leopold Haschka (1749–1827) and music by Joseph Haydn. It is sometimes called the "Kaiserhymne". Haydn's tune has since been widely employed in other contexts: in works of classical music, in Christian hymns, in alma maters, and as the tune of the "Deutschlandlied", the national anthem of Germany.

Francis II and I was the last Holy Roman Emperor as Francis II from 1792 to 1806, and the first Emperor of Austria as Francis I from 1804 to 1835. He was also King of Hungary, Croatia and Bohemia, and served as the first president of the German Confederation following its establishment in 1815.