Edler was until 1919 the lowest rank of nobility in Austria-Hungary and Germany, just beneath a Ritter (hereditary knight), but above untitled nobles, who used only the nobiliary particle von before their surname. It was mostly given to civil servants and military officers, as well as those upon whom the lower rank of an Order had been conferred. The noun Edler comes from the adjective edel ("noble"), and translated literally means "noble [person]". In accordance with the rules of German grammar, the word can also appear as Edle, Edlem, or Edlen depending on case, gender, and number.

Edler was until 1919 the lowest rank of nobility in Austria-Hungary and Germany, just beneath a Ritter (hereditary knight), but above untitled nobles, who used only the nobiliary particle von before their surname. It was mostly given to civil servants and military officers, as well as those upon whom the lower rank of an Order had been conferred. The noun Edler comes from the adjective edel ("noble"), and translated literally means "noble [person]". In accordance with the rules of German grammar, the word can also appear as Edle, Edlem, or Edlen depending on case, gender, and number.