Family name Kosych (Косыч 
, Kosych 
, Косич 
) , worldwide, is a rare cognomen. The surname Kosych is characteristic of Eastern Europe, particularly Ukraine, where it is a rare surname, Russia, and Belarus, where it is a very rare surname. Much less frequently, Kosych is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Косыч | Russia, Georgia, Belarus |
| Kosych | Russia, Germany |
| Косич | Ukraine, Russia, Kazakhstan |
| maria mykolaivna kosych Ukrainian and Belarusian writer, folklorist and ethnographer (b. 1850) |
|
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| vladimir ivanovič kosych RU |
|
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| ilʹja nikolaevič kosych RU (b. 1987) |
|