Show ContentsKoser History, Family Crest & Coats of Arms

The surname Koser 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.

Early Origins of the Koser family

The surname Koser was first found in Poland.

Early History of the Koser family

This web page shows only a small excerpt of our Koser research. More information is included under the topic Early Koser History in all our PDF Extended History products and printed products wherever possible.

Koser Spelling Variations

Spelling variations of this family name include: Khozak, Kosek, Kossak, Khozak, Kozick, Kozak, Kozik, Kozakiewicz, Koziarz, Koziarski and many more.


United States Koser migration to the United States +

Some of the first settlers of this family name were:

Koser Settlers in United States in the 18th Century
  • Leonhardt Koser, who landed in America in 1709 1
  • John Koser, who arrived in Pennsylvania in 1765 1
  • Friederich Koser, who landed in Pennsylvania in 1773 1
Koser Settlers in United States in the 19th Century
  • Jacob Koser, who arrived in Allegany (Allegheny) County, Pennsylvania in 1849 1

Contemporary Notables of the name Koser (post 1700) +

  • Preston Koser, American politician, Mayor of Iowa City, Iowa, 1950


  1. Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)


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