Family name Aigu (Agu 
, Akuta 
, Aigu 
) , all around the world, is a common last name. The surname Aigu is habitual in Nigeria, where it is quite a common surname, Estonia, where it is quite a rare surname, and Ghana. In absolute terms, it is the most numerous in Nigeria, Indonesia, and Ghana. Also, Aigu is the forename as well as the last name.