Cognomen Richka (Richka 
, Ричка 
) , across the world, is a rare family name. The family name Richka is characteristic of Ukraine, where it is quite a rare surname, Bulgaria, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Measured by absolute frequency, the name is most common in Ukraine, Bulgaria, and India. Likewise, Richka is the forename as well as the last name.