Surname Ecas (Ecas 
) , throughout the world, is a rare cognomen. The surname Ecas is characteristic of Philippines, where it is a rare surname, Indonesia, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Philippines, Indonesia, and India. Very seldom, Ecas is the forename as well as the last name.