Cognomen ケイラン (Keiran 
, ケイラン) , around the world, is a rare surname. The last name ケイラン is characteristic of Uruguay, where it is quite a rare surname, Canada, where it is a very rare surname, and the United States. Not in comparison with a country's population, this name is the most popular in the United States, Uruguay, and the United Kingdom. More prevalently, ケイラン is the forename as well as the last name.