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Across the world, Karlis (Karlis , Карлис , Карліс ) is quite a rare mostly male, but uncommonly girly first name. The given name Karlis is characteristic of Latvia, where it is quite a common boy's name, Afghanistan, where it is a rare masculine name, and Guatemala, where it is a rare girly name. Not in comparison with a country's population, this name is the most popular in Latvia, Afghanistan, and the United States. Likewise, Karlis is the last name as well as the forename.
Karlis is also a name for the fictitious and mythical characters: .