Family name 洛兰 (Loraine 
, Loran 
, Lorain ) , all over the world, is quite a common surname. The cognomen 洛兰 is characteristic of Jersey, where it is quite a common surname, North Macedonia, where it is quite a rare surname, and Puerto Rico. Not in comparison with a country's population, it most frequently occurs in France, the United States, and the United Kingdom. More frequently, 洛兰 is the forename as well as the last name.