Cognomen Ianna (Ianna 
, Янна 
, Ианна ) , in the entire world, is quite a rare family name. The family name Ianna is characteristic of Armenia, where it is quite a rare surname, Nigeria, where it is a rare surname, and Kyrgyzstan. In absolute terms, it is commonest in Nigeria, the United States, and Italy. More prevalently, Ianna is the forename as well as the last name.