Surname Košan (Кошан 
, Košan 
) , around the world, is a rare family name. The last name Košan is habitual in Ukraine, where it is a rare surname, Kyrgyzstan, and Belarus. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Ukraine, Czechia, and Belarus. Very seldom, Košan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Кошан | Russia, Kazakhstan, Ukraine, Kyrgyzstan, Belarus |
| Košan | Czechia |
| janko košan SI (b. 1857) |
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| marko košan SI |
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