Cognomen Barsil (Barsil 
) , in all the world, is a very rare family name. The cognomen Barsil is habitual in Malaysia, where it is a very rare surname, Nigeria, and Venezuela, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Nigeria, Malaysia, and Brazil. Likewise, Barsil is the forename as well as the last name.