Vasilije (Cyrillic: Василије) is a South Slavic masculine given name, a variant of Greek given name Vassilios ("Basil"). It may refer to:

• Vasilije, Serbian Patriarch (fl. 1763–1765), Serbian cleric born Vasilije Jovanović-Brkić
• Vasilije Calasan (born 1981), French racing driver
• Vasa Čarapić (1768–1806), Serbian voivode (military commander)
• Vasa Jovanović (1874–1970), Serbian lawyer, politician, founder of the Chetnik movement and a founding member of the League of Nations
• Vasilije Krestić (born 1932), intellectual and historian, and a member of the Serbian Academy of Sciences and Arts
• Vasilije Matić (1906–1981), forestry expert born in Srpske Moravice
• Vasilije Mokranjac (1923–1984), greatly influential and renowned Serbian composer
• Vasa Pelagić (1833–1899), Bosnian Serb writer, physician, educator, clergyman, nationalist and proponent of utopian socialism
• Vasilije Petrović (1709–1766), Prince Bishop of Montenegro
• Vasilije Popović (disambiguation), multiple people
• Vasilije Prodanović (born 1985), Serbian footballer
• Vasilije Radović (1938–2019), former Yugoslav football goalkeeper and manager
• Vasilije Šijaković (1929–2003), Montenegrin football player
• Vasilije Tomović (1906–1994), Montenegrin chess master
• Vasilije Trbić (1881–1962), Serbian Chetnik leader and politician
• Vasa Živković (1819–1891), Serbian poet and Orthodox priest