Last name Dilia (Dilia 
, Диля 
, Дилиа ) , in the entire world, is a common surname. The surname Dilia is characteristic of Venezuela, where it is quite a common surname, Honduras, and Tajikistan, where it is quite a rare surname. In absolute terms, this name is the most popular in Latin America and the Caribbean, particularly Venezuela, Honduras, and Mexico. More prevalently, Dilia is the forename as well as the last name.