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Last name איינשטיין (Einstein , איינשטיין ) , across the world, is quite a common family name. The cognomen איינשטיין is characteristic of Estonia, where it is quite a rare surname, Israel, and Ghana. Measured by absolute frequency, it is the most numerous in Indonesia, the United States, and Ghana. Likewise, איינשטיין is the forename as well as the last name.