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Cognomen Lett (Lett , 莱特 , Lette ) , all around the world, is a common family name. The last name Lett is characteristic of Grenada, where it is a common surname, Myanmar, where it is quite a common surname, and Trinidad and Tobago, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Myanmar, the United States, and Indonesia. Very seldom, Lett is the forename as well as the last name.