Louis II may refer to:
Kings Louis the German (804–876), king of East Francia Louis II of Italy (825–875), Carolingian Emperor Louis II of France (846–879), better known as Louis the Stammerer Louis II of Hungary and Bohemia (1506–1526) Louis II of Holland (1804–1831) Ludwig II of Bavaria (1845–1886), "Mad King Ludwig" Louis II of Navarre (1601–1643), better known as Louis XIII Louis II of Etruria (1799–1883), better known as Charles II, Duke of Parma
Counts Louis II, Count of Chiny (died before 1066) Louis II, Count of Loon (died 1218) Louis I of Flanders, Louis II of Nevers, (1304–1346) Louis II of Châtillon (died 1372) Louis II of Flanders (1330–1384) Louis II, Count of Blois (died 1346) Louis II, Count of Wuerttemberg (1439–1457) Louis II, Count of Montpensier (1483–1501) Louis II, Count of Nassau-Weilburg (1565–1627) Louis Günther II, Count of Schwarzburg-Ebeleben (1621–1681)
Landgraves Louis II, Landgrave of Thuringia (1128–1172) Louis II, Landgrave of Lower Hesse (1438–1471)
Dukes Louis II, Duke of Bavaria (1229–1294) Louis II, Duke of Bourbon (1337–1410) Louis II, Duke of Brieg (1380–1436) Louis II, Duke of Orléans (1462–1515) Louis II, Duke of Longueville (1510–1537) Louis II, Grand Duke of Hesse (1777–1848) Louis II, Grand Duke of Baden (1824–1858)
Princes
Louis II de Bourbon, Prince de Condé (1621–1686), "the Great Condé" Louis II, Prince of Monaco (1870–1949) Louis Frederick II, Prince of Schwarzburg-Rudolstadt (1767–1807) Louis Günther II, Prince of Schwarzburg-Rudolstadt (1708–1790) Luís Filipe, Prince Royal of Portugal (1887–1908), a.k.a. Louis II, Duke of Braganza
Other people
Louis II, Elector of Brandenburg (1328–1365)
Louis II, Cardinal of Guise (1555–1588)
Louis II d'Évreux (1336–1400) Louis II of Naples (1377–1417), Duke of Anjou and Count of Provence Louis II de la Trémoille (1460–1525), French general Louis II, Count Palatine of Zweibrücken (1502–1532)
See also Ludwig II (disambiguation)