Cognomen Rishar (Rishar 
) , in the entire world, is a very rare surname. The family name Rishar is habitual in Latvia, where it is a rare surname, the United States, where it is an extremely rare surname, and Canada. Not in comparison with a country's population, it is commonest in the United States, Latvia, and India. Likewise, Rishar is the forename as well as the last name.