Schaar is a surname. Notable people with the surname include:
Fabian Schaar (born 1989), German cyclist Gerhard Schaar (1919–1983), German U-boat commander John Schaar (1928–2011), American academic and political theorist Marijke Schaar (born 1944), Dutch tennis player Tom Schaar (born 1999), American skateboarder
See also Erzsébet Schaár (1905–1975), Hungarian sculptor Stijn Schaars (born 1984), Dutch footballer