Last name Kosco (Kosco 
) , throughout the world, is a rare surname. The family name Kosco is characteristic of Slovakia, where it is quite a rare surname, Cyprus, and Austria, where it is a rare surname. In absolute terms, the name is most common in the United States, Slovakia, and Czechia.
| VARIANT | COUNTRY |
|---|---|
| Kosco | United States, Cyprus, Czechia, Slovakia, Austria |
|
andy kosco American baseball player, US (b. 1941) |
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| george f. kosco United States Navy officer (1908–1985) (b. 1908) |
|
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| louis f. kosco American politician, US (b. 1932) |
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| jan kosco researcher |
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