Blasko is both a given name and a surname. Notable people with the name include:
Blaško Rajić (1878–1951), Croat priest, writer, and politician Milan Blaško (1961–2016), Slovak ski mountaineer Sarah Blasko (born 1976), Australian musician Bela Lugosi, born Béla Ferenc Dezső Blaskó
See also
Blasco Rob Nicholson (musician) (born 1969), nicknamed "Blasko"