Last name Брийан (Brillant 
, Брийан) , all over the world, is quite a rare family name. The family name Брийан is habitual in Reunion, where it is quite a common surname, France, where it is quite a rare surname, and Cameroon. Not in comparison with a country's population, this name is the most popular in France, the Democratic Republic of the Congo, and Algeria. Also, Брийан is the forename as well as the last name.