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Surname קאלקו (Kaleko , קאלקו , Kaléko) , worldwide, is a very rare last name. The family name קאלקו is habitual in New Zealand, where it is a very rare surname, Tanzania, and Israel. Measured by absolute frequency, the name is most common in Tanzania, the United States, and South Africa. Very seldom, קאלקו is the forename as well as the last name.