Cognomen Sarkus (Sarkus 
) , worldwide, is a rare surname. The family name Sarkus is characteristic of Northern Europe, particularly Lithuania, where it is quite a rare surname, Latvia, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Lithuania, the United States, and Latvia. Very seldom, Sarkus is the forename as well as the last name.