Cognomen Räni (Крень 
, Räni 
, Ряни ) , around the world, is quite a rare family name. The last name Räni is habitual in Belarus, where it is quite a rare surname, Estonia, where it is a rare surname, and Ukraine. In absolute terms, this name is the most popular in Eastern Europe, particularly Belarus, Russia, and Ukraine.
| hele-mai räni EE (b. 1931) |
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| riho räni actor (1947-1987) (b. 1947) |
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| krista räni (b. 1962) |
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| aivar räni EE (b. 1963) |
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