Diefendorf Family History
Diefendorf Name Meaning
German: habitational name apparently from a lost or unidentified place called Diefendorf. It is possible that the place in question is in fact Dübendorf near Zurich Switzerland which became to Diebenderf in the Palatinate (listed as a name of the Palatines) and subsequently transformed to Diefendorf modified on the model of Diefenbach a very frequent surname in southwestern Germany.
Source: Dictionary of American Family Names 2nd edition, 2022