Cognomen Zajnab (Зайнаб 
, زینب 
, Zajnab 
) , in the world, is a rare last name. The cognomen Zajnab is characteristic of Kyrgyzstan, where it is quite a rare surname, Iraq, where it is a rare surname, and Russia, where it is a very rare surname. More frequently, Zajnab is the forename as well as the last name.