The prestigious Jewish surname Horwitz comes from Bohemia, which is now part of the Czech Republic. In the Middle Ages, people were often known by only one name. As they began moving closer together, it became necessary to adopt surnames, in order to better distinguish themselves from one another. There are a wide variety of hereditary surnames, and the surname Horwitz is a habitational name. It is taken from the place called Horovice, in Bohemia which is derived from the Slavic element, gora, which means hill.
^ 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)