Family name Erlig (Erlig 
) , across the world, is a very rare cognomen. The cognomen Erlig is habitual in Latin America and the Caribbean, particularly Uruguay, where it is a rare surname, Nicaragua, where it is a very rare surname, and Honduras. Not in comparison with a country's population, it most frequently occurs in Uruguay, the United States, and Argentina. Much less frequently, Erlig is the forename as well as the last name.