Surname 海兰 (海兰 
, Hylan 
, Hyland 
) , all over the world, is a common last name. The cognomen 海兰 is characteristic of Ireland, where it is quite a common surname, Barbados, and Australia, where it is quite a rare surname. In absolute terms, the name is most common in the United States, China, and the United Kingdom. Also, 海兰 is the forename as well as the last name.