Cognomen Carreto (Carreto 
, Kroto 
) , worldwide, is a common last name. The last name Carreto is characteristic of Guatemala, where it is quite a common surname, Mexico, where it is quite a rare surname, and Portugal. Not in comparison with a country's population, it is commonest in Mexico, Guatemala, and the United States. Much less frequently, Carreto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carreto | United States, Spain, Mexico, Portugal, Guatemala |
| Kroto | Denmark, United States, Indonesia, Norway, Brazil |
| leonor maría de carreto DE (b. 1616) |
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| enric martí carreto Spanish businessman, ES (b. 1893) |
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héctor carreto Mexican writer, MX (b. 1953) |
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| pedro francisco enrique serrano carreto Mexican poet, CA (b. 1957) |
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| tanya rellstab carreto Mexican politician, MX (b. 1978) |
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| henri de carreto Roman Catholic bishop |
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| alberto de carreto catholic bishop |
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| artemisia doria e carreto 1574 - 14 Feb 1644 |
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