Surname Бирбал (Birbal 
, Бирбал 
) , in the world, is quite a rare last name. The cognomen Бирбал is habitual in Trinidad and Tobago, where it is quite a common surname, Nepal, where it is quite a rare surname, and Qatar. In absolute terms, it is commonest in India, Nepal, and Trinidad and Tobago. Much more frequently, Бирбал is the forename as well as the last name.