The surname Kozak has a number of possible origins. Firstly it may be a version of Kozlow, which is, in turn, derived from the Russian "kozyol," meaning goat. In this case, the name would have been an occupational name of a goat herder. Or, the name could have been a nickname for someone who was very stubborn. Secondly, it was a name for a Cossack. The Cossacks were a group of people descended from runaway serfs, this group established a semi-military state within the Ukraine in the 15th and 16th centuries. Finally, this may have been a Jewish nickname for someone who was considered ruthless.
This web page shows only a small excerpt of our Kozak research. More information is included under the topic Early Kozak History in all our PDF Extended History products and printed products wherever possible.
Harley Jane Kozak (b. 1957), American actress and author
Scott Allen Kozak (b. 1965), former American football linebacker
Warren Kozak (b. 1951), American writer, journalist, and a former contributor to National Public Radio and the New York Sun
Ashley Kozak (1930-2008), American jazz bassist, record producer and artists' manager
Mitchell Kozak, American Democrat politician, Candidate in primary for Michigan State House of Representatives 19th District, 1974 
Michael G. Kozak (b. 1946), American politician, U.S. Ambassador to El Salvador, 1991; Belarus, 2000 
Joseph A. Kozak, American politician, Candidate for Mayor of Grand Rapids, Michigan, 1942 
James E. Kozak, American Republican politician, Candidate for Michigan State House of Representatives 76th District, 1998 
Henry Raymond Kozak (1917-2001), American Democrat politician, Member of Michigan State Senate 3rd District, 1945-50; Candidate in primary for Michigan State House of Representatives from Wayne County 14th District, 1960