Surname Гаха (Haha 
, Hacha 
, Гаха 
) , around the world, is a common cognomen. The cognomen Гаха is habitual in Hong Kong, where it is quite a rare surname, Macao, and Brunei. In absolute terms, it is the most numerous in Indonesia, Myanmar, and Egypt. Likewise, Гаха is the forename as well as the last name.