In all the world, Katsai (Katsai , Кацай ) is an extremely rare male first name. Much more frequently, Katsai is the last name as well as the forename.
Катсаи, and Катцаи
Mr, Ms, Alex, Elina, Sergio, Alexey, Tatiana, Suttisak, and Aleksandr
, Кацай 
) is an extremely rare male first name. Much more frequently, Katsai is the last name as well as the forename.