Cognomen Kiškis (Kiškis 
, Кишкис 
) , all over the world, is a very rare family name. The surname Kiškis is habitual in Lithuania, where it is quite a rare surname, Belarus, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, this name is the most popular in Lithuania, Russia, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Kiškis | Lithuania |
| Кишкис | Belarus, Russia, Kazakhstan |
| enrikas kiškis Lithuanian composer, LT (b. 1905) |
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| mindaugas kiškis Lithuanian university teacher, LT (b. 1975) |
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| rolandas kiškis LT (b. 1976) |
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