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Last name Diep (Diep
, Dyby
, Диеп
) , worldwide, is a common cognomen. The last name Diep is habitual in British Virgin Islands, where it is quite a common surname, Macao, where it is quite a rare surname, and Vietnam. Not in comparison with a country's population, it is commonest in Vietnam, the United States, and Malaysia. Likewise, Diep is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diep | Australia, Malaysia, United States, Vietnam, Canada |
| Dyby | United Kingdom, Thailand, France, Nicaragua, China |
| Диеп | Russia |