Last name Semai (Semai 
) , in the entire world, is quite a rare family name. The cognomen Semai is characteristic of Algeria, where it is quite a rare surname, Malaysia, where it is a rare surname, and France, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Algeria, Indonesia, and Malaysia. Also, Semai is the forename as well as the last name.