Carla

Carla is a feminine form of Carl, which itself comes from the name Charles. Since Charles means "man" or "free man," then Carla can be taken to mean "woman" or "free woman." Carla is an extremely popular name in Spain. In the U.S., Carla began to be used in the 1920's, reached a popularity peak in the 1960's, and has been declining slowly in popularity ever since. Carla wasn't used enough, even at the peak of its popularity, to be considered over-used, and its decline has been slow; people still like this name apparently. It has remained in the top 500, and could see a revival in popularity at any time--especially if it gets a push from a famous Carla, whether real or fictional.