Daumantas (Ruthenian: Dowmont or Domont; Belarusian: Daǔmont; Russian: Довмонт) is the name of two early dukes of Grand Duchy of Lithuania. Because they were contemporaries, they are often confused with each other and sometimes believed to have been one person.

• Daumantas of Lithuania, Grand Duke of Lithuania (1282–1285)
• Daumantas of Pskov, Prince of Pskov (1266–1299)

Other meanings include

• Juozas Lukša also known as Daumantas, freedom fighter for Lithuanian independence after World War II

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