Worldwide, Leontjew (Леонтьев , Leontjew ) is an extremely rare masculine first name. Much more prevalently, Leontjew is the last name as well as the forename.
Leont'Ev, Leontev, Leontief, Leontiev, Leontjev, Leontyev, and Леонтьєв
Marek, Pedro, Sergej, Cirilo, Robert, Dimitri, Nicolas, Nicholas, Elisabet, Federico, and Alexander
, Leontjew 
) is an extremely rare masculine first name. Much more prevalently, Leontjew is the last name as well as the forename.