Kos, meaning "blackbird", is a Slavic surname very common in Slovenia. It is the 10th most common surname in Slovenia. Unlike many other Slovene surnames, Kos is found throughout the country, although it's more common in the central and eastern regions than in the west.
It can refer to:
Slovenia
Božo Kos (1931–2009), Slovenian illustrator, caricaturist, and vignettist
Franc Kos (1853–1924), Slovenian historian
Gojmir Anton Kos (1896–1970), Slovenian painter
Janko Kos (born 1931), Slovenian literary historian
Milko Kos (1892–1972), Slovenian historian
Vladimir Kos (born 1924), Slovenian Jesuit priest, poet, philosopher, essayist and translator
Tine Kos (1894–1977), Slovenian sculptor
Elsewhere
Józef Kos, Polish war veteran
Károly Kós, Hungarian architect
Maja Kos, Serbian synchronized swimmer
Mile Kos, Serbian footballer
Monika Kos, Australian journalist
Paul Kos, American conceptual artist
René Kos, Dutch cyclist
Rudolph Kos, American priest
Tomasz Kos, Polish footballer