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Around the world, Blain (Blain , ブラン , 布莱恩 ) is quite a rare boy's given name. The forename Blain is characteristic of the Democratic Republic of the Congo, where it is a rare masculine name, the United States, and Ireland. Not in comparison with a country's population, it is commonest in the United States, the Democratic Republic of the Congo, and the United Kingdom. More prevalently, Blain is the last name as well as the forename.
Blain is also a name for the fictitious and mythical characters: Blaine Anderson , the fictional character from the television series Glee; Blaine , the Totally Spies! character and Blaine Gordon , the fictional character based on the Barbie doll.