"The Wise" is an epithet which may refer to:
- Ailerán (died 664 or 665), Irish saint and scholar
- Alfonso X of Castile (1221–1284), King of Castile, León and Galicia
- Ari Thorgilsson, (1067–1148), Icelandic medieval chronicler
- Banban the Wise, Irish saint, fl. c. mid to late 5th century
- Berengar the Wise (died 835), Count (or Duke) of Toulouse, Duke (or Margrave) of Septimania, and Count of Barcelona
- Cato the Elder (234–149 BC), Roman soldier, senator and historian
- Charles V of France (1338–1380), King of France
- Epiphanius the Wise (died 1420), monk and Eastern Orthodox saint
- Francisco José de Caldas (1768–1816), Colombian lawyer, engineer and geographer
- Frederick III, Elector of Saxony (1463–1525), a German nobleman who protected Martin Luther
- Gildas (c. 500–570), British saint and cleric
- John V, Duke of Brittany (1389–1442), also Count of Montfort
- Leo VI the Wise (866–912), Eastern Roman Emperor, Macedonian dynasty
- Louis I of Brzeg (c. 1321–1398), Duke and regent of Legnica, Duke of Brzeg
- Robert, King of Naples (1277–1343), known as a peacemaker and a patron of the arts
- Rognvald Eysteinsson (fl. 9th century), founder of the Earldom of Orkney in the Norse Sagas
- Yaroslav the Wise (c. 978–1054), thrice Grand Prince of Novgorod and Kiev
Fictional and mythological characters
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