Surname Avanu (Avanu 
) , in the entire world, is a rare cognomen. The surname Avanu is habitual in Romania, where it is quite a rare surname, Denmark, where it is a very rare surname, and Italy, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Romania, Nigeria, and Denmark. Much less frequently, Avanu is the forename as well as the last name.