Surname Maniana (Maniana 
) , in the world, is a rare cognomen. The cognomen Maniana is habitual in Papua New Guinea, where it is quite a rare surname, Greece, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Papua New Guinea, Greece, and Philippines. Very seldom, Maniana is the forename as well as the last name.