Otto II (disambiguation)
Otto II generally refers to Otto II, Holy Roman Emperor. It may also refer to:
Otto II may also refer to:
- Otto II, Duke of Saxony, also known as Otto the Great and Otto I
- Otto II, Duke of Swabia, member of the Ezzonid dynasty
- Otto II, Marquess of Montferrat, a member of the Aleramid dynasty
- Otto II, Count of Habsburg, one of the founding members of the Habsburg family
- Otto II, Count of Scheyern, son of Otto I, House of Wittelsbach
- Otto II, Count of Chiny, son of Arnold I and Adélaïs
- Otto II, Count of Duras, son of Giselbert II and Gertrud
- Otto II, Margrave of Meissen, member of the House of Wettin
- Otto II, Count of Guelders, son of Gerard III and Margaretha of Brabant
- Otto II, Margrave of Brandenburg, called The Generous
- Otto II (bishop of Freising), 24th Bishop of Freising from 1184
- Otto II, Count of Burgundy, also known as Otto I, Duke of Merania
- Otto II of Andechs and Merania, a member of the House of Andechs
- Otto II, Duke of Bavaria, son of Ludwig I and Ludmilla of Bohemia, and a member of the Wittelsbach dynasty
- Otto II, Count of Zutphen, son of Gottschalk, Count of Zutphen and Adelheid of Zutphen
- Otto II, Prince of Anhalt-Aschersleben, German prince of the House of Ascania
- Otto II, Duke of Brunswick-Lüneburg, House of Welf and Prince of Lüneburg, 1277–1330
- Otto II, Count of Waldeck, Count of Waldeck, 1344–1369
- Otto II, Count of Rietberg, ruling Count of Rietberg, 1365–1389
- Otto II, Duke of Pomerania, Duke of Pomerania-Stettin from the House of Griffins
- Otto II, Duke of Brunswick-Osterode, son of Duke Frederick I of Brunswick-Osterode and Adelaide of Anhalt-Zerbst
- Otto II, Duke of Brunswick-Göttingen, member of the House of Welf,
- Otto II, Count Palatine of Mosbach-Neumarkt, the Count Palatine of Mosbach-Neumarkt, 1461–1499
- Otto II, Duke of Brunswick-Harburg, nicknamed the Younger
- Otto II of Hungary, the last Crown Prince of Austria-Hungary, 1916–1919