Surname Алю (Alieu 
, Алю 
) , around the world, is a rare family name. The family name Алю is habitual in Sub-Saharan Africa, particularly Gambia, where it is quite a common surname, Sierra Leone, where it is quite a rare surname, and Nigeria, where it is a very rare surname. Much more prevalently, Алю is the forename as well as the last name.