Family name Ngatu (Nigatu 
, Ngatu 
, Negatu ) , around the world, is a common cognomen. The cognomen Ngatu is habitual in Ethiopia, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Lebanon. Not in comparison with a country's population, it is the most numerous in Ethiopia, Sudan, and Saudi Arabia. Also, Ngatu is the forename as well as the last name.