Barasa is a surname. Notable people with the surname include:
Didmus Wekesa Barasa, Kenyan politician and military officer George Barasa (born 1990), Kenyan human rights activist Jonathan Barasa (1916–1996), Kenyan chief Nerijus Barasa (born 1978), Lithuanian association football player Violet Barasa (1975–2007), Kenyan volleyball player
See also Barasa acronyctoides, an Asian moth species