Surname Zainidin (Зайнидин 
, Заинидин 
, Zainidin 
) , across the world, is a rare last name. The family name Zainidin is habitual in Kyrgyzstan, where it is quite a rare surname, Malaysia, where it is a rare surname, and Russia, where it is an extremely rare surname. More frequently, Zainidin is the forename as well as the last name.