Cognomen Bannu (Bannu 
, بانو 
) , around the world, is quite a rare last name. The surname Bannu is habitual in Western Asia, particularly United Arab Emirates, where it is quite a rare surname, Saudi Arabia, and Iraq, where it is a rare surname. Not in comparison with a country's population, the name is most common in India, Saudi Arabia, and Iraq. More prevalently, Bannu is the forename as well as the last name.