Cognomen コワル (Kowal 
, コワル) , throughout the world, is a common last name. The family name コワル is habitual in Poland, where it is quite a common surname, Mauritius, where it is quite a rare surname, and Canada. Measured by absolute frequency, the name is most common in Poland, the United States, and Germany. Likewise, コワル is the forename as well as the last name.