Globally, Ефимтцев (Ефимтцев ) is an extremely rare unknown gender first name. Much more prevalently, Ефимтцев is the last name as well as the forename.
Efimtsev
Сергей, and Евгений
) is an extremely rare unknown gender first name. Much more prevalently, Ефимтцев is the last name as well as the forename.