Family name Leonow (Leonow 
, Леонов 
) , in the entire world, is a common cognomen. The last name Leonow is habitual in Eastern Europe, particularly Russia, where it is quite a common surname, Belarus, and Ukraine.
| denis wladimirowitsch leonow Kazakh ice hockey player (1977-), KZ (b. 1977) |
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| andriej leonow (b. 1980) |
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| eugenij leonow |
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