Last name Katnić (Katnić 
) , throughout the world, is a rare surname. The family name Katnić is habitual in Southern Europe, particularly Croatia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Katnić | Croatia |
| ervin katnić Serbian footballer, HR (b. 1922) |
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| milivoje katnić Montenegrin lawyer, prosecutor and reserve officer, ME (b. 1957) |
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| milorad katnić politician in Montenegro |
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