Surname Brianus (براين 
, Брайан 
, Браян ) , across the world, is a rare cognomen. The last name Brianus is habitual in Sudan, where it is a rare surname, Iraq, and Ukraine, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Sudan, Iraq, and Russia. More frequently, Brianus is the forename as well as the last name.