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All around the world, Eida (Eida , Ейда ) is quite a rare epicene forename. The first name Eida is characteristic of Latin America and the Caribbean, particularly Costa Rica, where it is quite a common girly name, Panama, where it is quite a rare feminine name, and Bolivia, where it is a rare girly name. Measured by absolute frequency, it is commonest in Costa Rica, Pakistan, and Mexico. Likewise, Eida is the last name as well as the forename.