Surname Паци (Paci 
, Pazzi 
, Patci 
) , all over the world, is a common cognomen. The last name Паци is characteristic of Southern Europe, particularly San Marino, where it is quite a common surname, Albania, and Italy, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Italy, India, and Argentina. Likewise, Паци is the forename as well as the last name.