Cognomen Zainan (Zainan 
, Зайнан 
) , around the world, is quite a rare surname. The cognomen Zainan is habitual in Malaysia, where it is quite a rare surname, Nigeria, where it is a rare surname, and Singapore, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Nigeria, Malaysia, and Indonesia. Much less frequently, Zainan is the forename as well as the last name.