Last name Wilier (Wilier 
) , throughout the world, is a very rare family name. The family name Wilier is characteristic of Latin America and the Caribbean, particularly Venezuela, where it is a very rare surname, Colombia, and Peru, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Latin America and the Caribbean, particularly Venezuela, Colombia, and Mexico. More frequently, Wilier is the forename as well as the last name.