Last name Ивэй (Yiwei 
, Ивэй 
) , in all the world, is a rare family name. The last name Ивэй is characteristic of Singapore, where it is a rare surname, Malaysia, and Spain, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in China, Malaysia, and Singapore. Much more frequently, Ивэй is the forename as well as the last name.