Cognomen Panjan (ปานจันทร์ 
, Panjan 
, Панян 
) , around the globe, is quite a rare last name. The surname Panjan is habitual in Slovenia, where it is quite a rare surname, Thailand, and Croatia, where it is a rare surname. Measured by absolute frequency, the name is most common in Thailand, Russia, and Slovenia. Likewise, Panjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ปานจันทร์ | Thailand |
| Panjan | Malaysia, Croatia, Thailand, Slovenia, India |
| Панян | Ukraine, Russia, Armenia, Belarus |
| peter panjan researcher, SI (b. 1957) |
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| darja paro panjan SI |
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| matej panjan SI |
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| andrej panjan SI |
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| matjaž panjan SI (b. 1980) |
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| jože panjan SI |
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