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Globally, Olag (Olag , Олаг ) is a very rare epicene forename. The forename Olag is habitual in Eastern Europe, particularly Russia, where it is an extremely rare unisex name. Much more prevalently, Olag is the last name as well as the forename.
Olag is also a name for the fictitious and mythical characters: Olag Gan , the fictional character in the British television series Blake's 7.