Surname Saadin (Saadin 
, Саадин 
) , around the world, is a rare cognomen. The family name Saadin is characteristic of Malaysia, where it is quite a rare surname, Kyrgyzstan, where it is a rare surname, and Morocco, where it is a very rare surname. Measured by absolute frequency, the name is most common in Malaysia, Indonesia, and Morocco. Much less frequently, Saadin is the forename as well as the last name.