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Cognomen Ello (Ello , สวัสดี , Ollus ) , across the world, is a common family name. The surname Ello is characteristic of Thailand, where it is quite a common surname, Ivory Coast, where it is quite a rare surname, and Philippines. Not in comparison with a country's population, the name is most common in Thailand, Philippines, and the Democratic Republic of the Congo. Very seldom, Ello is the forename as well as the last name.