Leopold I

Leopold I may refer to:

• Leopold I, Margrave of Austria (d. 994), first Margrave of Austria
• Leopold I, Duke of Austria (1290–1326), co-Duke of Austria and Styria with Frederick I
• Leopold I, Holy Roman Emperor (1640–1705), Holy Roman Emperor, King of Germany, Hungary and Bohemia
• Leopold I, Prince of Anhalt-Dessau (1676–1747), Prince of Anhalt-Dessau
• Leopold I, Prince of Lippe (1767–1802), ruler of the Principality of Lippe
• Leopold I, Grand Duke of Baden (1790–1852)
• Leopold I of Belgium (1790–1865), first King of the Belgians