Surname Hasain (Hasain 
, Хасайн 
, Хасаин 
) , in the entire world, is quite a common cognomen. The family name Hasain is characteristic of Western Asia, particularly Oman, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Qatar. In absolute terms, it is commonest in Southern Asia, particularly India, Bangladesh, and Pakistan. Likewise, Hasain is the forename as well as the last name.