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In all the world, Kustaava (Gustava , Kustaava) is a rare largely girly, but uncommonly boy's first name. The given name Kustaava is characteristic of Sweden, where it is quite a rare feminine name, Israel, where it is a rare primarily girly, but scarcely boy's name, and Austria, where it is a rare feminine name. Not in comparison with a country's population, the name is most common in Sweden, Mexico, and the United States. Very seldom, Kustaava is the last name as well as the forename.