Last name Ralia (Ralia 
, Раля 
, Rallier 
) , throughout the world, is quite a rare cognomen. The cognomen Ralia is characteristic of Greece, where it is quite a rare surname, France, where it is a rare surname, and Romania. Measured by absolute frequency, it is commonest in Nigeria, France, and Philippines. More prevalently, Ralia is the forename as well as the last name.