Cognomen Lucianus (Luciano 
, Lucian , Lucianus 
) , in the world, is a widespread surname. The last name Lucianus is habitual in Romania, where it is a common surname, the Dominican Republic, where it is quite a common surname, and Mexico (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in Mexico, Brazil, and Romania. More frequently, Lucianus is the forename as well as the last name.