The surname Diller is of German origin, derived from the Middle High German word "tille" meaning "dill" or "fennel". It likely originated as an occupational name for a grower or seller of dill or fennel in the medieval period.
The name first appeared in records from the 13th century in the regions of Bavaria and Swabia in southern Germany. Early variations of the spelling included Diller, Dillher, and Dillner. The name was also found in some areas of Switzerland during this time.
One of the earliest recorded references to the name is in the town records of Nürnberg, Germany, which mention a Johann Diller in 1349. Another early record is from the town of Ulm in 1402, which lists a Hans Diller as a resident.
In the 16th century, the name spread to other parts of Germany, as well as to neighboring regions such as Austria and parts of Eastern Europe. A notable bearer of the name from this period was the German botanist Johann Jakob Dillenius (1687-1747), who made significant contributions to the study of mosses and ferns.
During the 17th and 18th centuries, the name became more widespread across Europe, with bearers found in countries like France, Switzerland, and Poland. One famous bearer from this time was the German composer Johann Friedrich Dillermann (1739-1809), who composed operas and other works.
In the 19th century, the name began to appear in North America, as German immigrants brought the name with them to the United States and Canada. One notable American bearer was the businessman and philanthropist Clarence Diller (1840-1901), who made his fortune in the lumber industry and founded Diller College in Pennsylvania.
Other notable bearers of the Diller surname throughout history include the German painter Hans Diller (1599-1647), the Swiss painter Johann Jakob Diller (1784-1862), and the Austrian philosopher and writer Theodor Diller (1877-1954).