Cognomen Kotlik (Kotlik 
, Котлик 
) , worldwide, is a rare last name. The surname Kotlik is habitual in Czechia, where it is quite a rare surname, Austria, where it is a rare surname, and Ukraine. In absolute terms, it most frequently occurs in Eastern Europe, particularly Czechia, Ukraine, and Russia. Much less frequently, Kotlik is the forename as well as the last name.