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Last name Dial (Dial
, Dyal
, ديال
) , around the world, is a common surname. The last name Dial is habitual in Senegal, where it is quite a common surname, Trinidad and Tobago, and Mauritius. Measured by absolute frequency, it is the most numerous in the United States, India, and Senegal. Very seldom, Dial is the forename as well as the last name.