Cognomen Khasain (Хасайн 
, Хасаин 
, Khasain 
) , all over the world, is a rare family name. The family name Khasain is characteristic of Kyrgyzstan, where it is a very rare surname, India, and Russia, where it is an extremely rare surname. Very seldom, Khasain is the forename as well as the last name.