Vasa is a masculine given name and nickname (short for Vasilije), as well as a surname. Notable people with the name include:
Vasa Mihich (born 1933), American artist
Vasa Mijić (born 1973), Serbian volleyball player
Vasa Stajić (1878—1947), Serbian writer and philosopher
Vasilije Vasa Čarapić (1768–1806), Serbian voivode (military commander) Vasilije Vasa Jovanović (1874–1970), Serbian lawyer, politician, founder of the Chetnik movement and a founding member of the League of Nations Vasilije Vasa Živković (1819–1891), Serbian poet and Orthodox priest Vasilije Vasa Pelagić (1833–1899), Bosnian Serb writer, physician, educator, clergyman, nationalist and proponent of utopian socialism Vasilije Vaso Čubrilović (Vasilije Vasa Čubrilović; 1897–1990), Bosnian Serb scholar and politician Eero Vasa (born 1997), Finnish tennis player Robert F. Vasa (born 1951), American Roman Catholic prelate and former Bishop of Baker