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Globally, Tester (Testa , Tester , テスター ) is quite a rare unisex first name. The first name Tester is habitual in Italy, where it is quite a rare mostly masculine, but seldom girly name, the Democratic Republic of the Congo, where it is a rare female name, and Czechia, where it is a rare masculine name. Not in comparison with a country's population, it most frequently occurs in Italy, Indonesia, and the Democratic Republic of the Congo. More frequently, Tester is the last name as well as the forename.
Tester is also a name for the fictitious and mythical characters: .