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Across the world, Лихачьов (Лихачьов ) is an extremely rare unknown gender given name. Much more prevalently, Лихачьов is the last name as well as the forename.
Lihachov, Likhachov, and Likhachyov
Іван, Микола, Василь, Сергій, Григорій, and Олександр