Surname Silnia (Silnia 
) , in the world, is an extremely rare family name. The surname Silnia is habitual in Latin America and the Caribbean, particularly Honduras, where it is a very rare surname, Nicaragua, and Venezuela, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Latin America and the Caribbean, particularly Honduras, Venezuela, and Mexico. More prevalently, Silnia is the forename as well as the last name.