In all the world, Зачем (Зачем , Zachem ) is an extremely rare male first name. Predominantly, Зачем is the last name as well as the forename.
Чем, and Что
Никто, Ирина, Марина, Сергей, Владимир, and Александр
, Zachem 
) is an extremely rare male first name. Predominantly, Зачем is the last name as well as the forename.