Across the world, Флавий (Flavio 
, Flavius 
, Флавий 
) is a widespread masculine given name. The first name Флавий is habitual in Brazil, where it is a common male name, Italy, where it is quite a common boy's name, and Cabo Verde (explore the name in all countries). In absolute terms, this name is the most popular in Brazil, Italy, and Mexico. Very seldom, Флавий is the last name as well as the forename.
Флавий is also a name for the fictitious and mythical characters: Flavius Lucius Dexter , the fictious Roman historian; Flavius Eutropius , the probably fictitious father of Constantius Chlorus; Flavio , the operatic character in the opera Norma by Vincenzo Bellini; Pollione's companion; Flavio Anceschi and Flavius Grimoaldus (Grimoald) Tyrann und Liebhaber Rodelindas , the operatic character in the opera Flavius Bertaridus, König der Longobarden, among other works.