In the entire world, Щаев (Щаев , Shchaev , Schaev ) is an extremely rare unknown gender forename. Much more frequently, Щаев is the last name as well as the forename.
Shaev, and Shayev
Олег, Владимир, Геннадий, Василий, Валерий, Дмитрий, Алексей, Сергей, Леонид, Виктор, Андрей, Игорь, Антон, Юрий, Егор, Иван, Александр, and Константин
, Shchaev 
) is an extremely rare unknown gender forename. Much more frequently, Щаев is the last name as well as the forename.