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Cognomen Ludan (露丹 , Ludan
, 路丹
) , all over the world, is quite a rare last name. The surname Ludan is characteristic of Ukraine, where it is a rare surname, Hungary, and Malaysia. Measured by absolute frequency, it most frequently occurs in China, Ukraine, and Philippines. More frequently, Ludan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 露丹, 路丹 | China |
| Ludan | Philippines, Tanzania, Sudan, India, China |
| Лудан | Kazakhstan, Russia, Ukraine |