Vytautas, styled "the Great" from the 15th century onwards; c. 1350 – October 27, 1430) is one of the most famous rulers of medieval Lithuania.

Vytautas is the ruler (1392–1430) of the Grand Duchy of Lithuania which chiefly encompasses the Lithuanians and Ruthenians.

He is also the Prince of Hrodna (1370–1382) and the Prince of Lutsk (1387–1389), postulated king of Hussites.

In modern Lithuania, Vytautas is revered as a national hero and was an important figure in the national rebirth in the 19th century.

Vytautas is a popular male given name in Lithuania.

In commemoration of 500 years of Vytautas' death Vytautas Magnus University was named after him.

Monuments in his honour were built in many towns in the independent Republic of Lithuania during the interwar period, 1918–1939.