Cognomen Нилка (Nilca 
, Нилка 
) , in the entire world, is a rare last name. The last name Нилка is characteristic of Romania, where it is a rare surname, Venezuela, where it is a very rare surname, and Nicaragua. Not in comparison with a country's population, this name is the most popular in Romania, Venezuela, and Mexico. More prevalently, Нилка is the forename as well as the last name.