Surname Rujan (Rujan 
, Ружан 
) , in all the world, is quite a rare last name. The family name Rujan is habitual in Romania, where it is quite a rare surname, Greece, where it is a very rare surname, and Italy. Measured by absolute frequency, it is commonest in Romania, India, and the United States. Also, Rujan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rujan | Italy, India, Nepal, United States, Romania |
| Ружан | Kazakhstan, Russia, Ukraine |
| bořek rujan Czechoslovak pedagogue, CZ (b. 1899) |
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| rujan harchand panjwani Indian businessperson (born 1963, child of Harchand Motumal Panjwani), IN (b. 1963) |
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| ion-cristinel rujan Romanian politician, RO (b. 1972) |
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| dumitru rujan Romanian politician, RO (b. 1987) |
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