Cognomen Ilych (Ilych 
) , all over the world, is a very rare family name. The cognomen Ilych is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Venezuela, and Honduras. Not in comparison with a country's population, it is the most numerous in Latin America and the Caribbean, particularly Mexico, Nicaragua, and Venezuela. Likewise, Ilych is the forename as well as the last name.