Cognomen Барретт (Barrett 
, Барретт 
) , worldwide, is a widespread family name. The surname Барретт is characteristic of Jamaica, where it is a common surname, Ireland, and Isle of Man, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in the United States, the United Kingdom, and Australia. Very seldom, Барретт is the forename as well as the last name.