Kos, meaning "blackbird", is a Slavic surname. It is very common in Slovenia, Croatia, Poland, Ukraine, and the Czech Republic.

Look up kos in Wiktionary, the free dictionary.

It is the 10th most common surname in Slovenia.^[1] 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.^[1]

It is the third most common surname in the Zagreb County of Croatia.^[2]

It may refer to:

Slovenia

• Božo Kos (1931–2009), Slovenian artist
• 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 (1936–2017), Czech football player
• Tine Kos (1894–1977), Slovenian sculptor

Elsewhere

• Anatoliy Kos-Anatolsky (1909–1983), Ukrainian composer
• Ćiril Kos (1919–2003), Croatian Roman Catholic prelate
• Joanna Kos-Krauze (born 1972), Polish filmmaker
• Józef Kos (1900–2007), Polish war veteran
• Károly Kós (1883–1977), Hungarian architect
• Maja Kos (born 1968), Serbian synchronized swimmer
• Mile Kos (1925–2014), Serbian footballer
• Monika Kos (born 1967), Australian journalist
• Paul Kos (born 1942), American conceptual artist
• René Kos (born 1955), Dutch cyclist
• Rudolph Kos (born 1945), American priest
• Stephen Kós (born 1959), New Zealand judge
• Tomasz Kos (born 1974), Polish footballer
• Dr. Charles Kos (born 1989), Australian author