Cognomen Душко (Dusko 
, Duško 
, Душко 
) , in the entire world, is quite a common family name. The cognomen Душко is characteristic of North Macedonia, where it is a common surname, Reunion, where it is quite a common surname, and Montenegro, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in North Macedonia, Ukraine, and Russia. More frequently, Душко is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Dusko | Montenegro, North Macedonia, Serbia, Croatia, Bosnia and Herzegovina |
| Duško | Montenegro, Serbia, Croatia, Bosnia and Herzegovina, United States |
| Душко | Kazakhstan, Russia, Belarus, Serbia, Ukraine |
| Dushko | Germany, North Macedonia, Bulgaria, United States, Greece |
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душко радовић Serbian poet (1922-1984), RS (b. 1922) |
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душко гојковић Serbian musician, RS (b. 1931) |
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душко трифуновић Bosnian-Serb writer, poet, RS (b. 1933) |
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| душко, андрей васильевич UA (b. 1878) |
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душко м. петровић Serbian writer, RS (b. 1948) |
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душко ивановић Montenegrin basketball coach, ME (b. 1957) |
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душко марковић Montenegrin politician, ME (b. 1958) |
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душко кнежевић businessman, ME (b. 1959) |
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душко витас RS (b. 1949) |
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душко вујошевић Serbo-Montenegrin basketball coach, ME (b. 1959) |
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| душко кондов BG (b. 1902) |
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душко жарковић Commander of the Serbian Air Force and Air Defense, RS (b. 1968) |
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| душко лукарски MK (b. 1913) |
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душко савановић Serbian basketball player, RS (b. 1983) |
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душко гошевски Macedonian writer, MK (b. 1983) |
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