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Last name Hollo (Hollo , הולו , Холло ) , worldwide, is quite a common family name. The last name Hollo is characteristic of Hungary, where it is quite a common surname, Estonia, where it is quite a rare surname, and Finland. Not in comparison with a country's population, this name is the most popular in Hungary, the United States, and Ivory Coast. Likewise, Hollo is the forename as well as the last name.