German surnames Familienname have been around since about the twelfth century and are derived from four major sources. The first major source of surnames is given names (both Patronymic and Matronymic) whereby the name is derived from the father or mother’s first name such as Karl Johannes or Casper Barbara. The second major source is occupational, whereby the name is derived from an occupation or trade. These names are more common in Germany than any other country in Europe and include names such as Karl Muller (miller), and Johannes Schmidt (smith). A third major source of German surnames is descriptive names that are derived from a descriptive feature of a person such as Wilhelm Klein (small) or Casper Schwarzkopf (black headed). The final major source of surnames is geographical, whereby the name is derived from the location where the first bearer of the name came or some other geographical landmark such as Wilhelm Meer (from near the sea) or Jakob Bonn (Jacob from Bonn).,
With this knowledge of German surnames, I set out to determine the origin and meaning of the Horn family name. I have ruled out given names as a source for the name Horn since I was unable to discover any German forenames similar to the word Horn. It is possible, but I think unlikely, that the Horn family name is derived from an occupation. Horn, when used in the context of occupation, means the name of one who carves objects out of horn or who plays the horn. Although possible, I believe I have discovered a more likely source. I also do not believe the Horn surname is derived from a descriptive source. The name Horn does not describe human traits or features and is an unlikely source. I believe the Horn family name is derived from a geographical name. The German village of Horn is located in the Rhein-Hunsrück-Kreis in Rhineland-Palatinate Germany. Horn is just a few miles south of Koblenz and is in the same area in western Germany that I have found the earliest records of my ancestors. I believe that it is likely that my earliest Horn family ancestors came from the little village of Horn Germany with a current population of just 346 inhabitants.
The Horn surname is the ninety second most common surname in Germany  and although the Horns are scattered throughout Germany today, the largest concentration of the Horn surname is in the west-central region of Germany where Horn Germany is located and my ancestors hailed from.
 http://genealogy.about.com/cs/surname/a/german_surnames.htm. Accessed 5 May 2015..
 http://en.wikipedia.org/wiki/German_name. Accessed 4 May 2015.
 http://surnames.behindthename.com/name/horn-1. Accessed 4 May 2015.
 http://en.wikipedia.org/wiki/Horn,_Germany. Accessed 2 April 2015.
 http://german.about.com/od/names/a/German-Surnames.htm. Accessed 4 April 2015.
 http://www.verwandt.de/karten/absolut/horn.html. Accessed 4 April 2015.