Burgomaster (alternatively spelled Burgmeister, literally master of the town, borough or master of the fortress) is the English form of various terms in or derived from Germanic languages for the chief magistrate or chairman of the executive council of a sub-national level of administration. All contemporary titles are commonly translated into English as Town Mayor.
Bürgermeister, in German: in Germany, Austria, and formerly in Switzerland. In Switzerland, the title was abolished mid-19th century; various current titles for roughly equivalent offices include Gemeindepräsident, Stadtpräsident, Gemeindeammann, and Stadtammann.
Oberbürgermeister ('Supreme Burgomaster') is the most common version for a mayor in a big city. The Ober- (lit. upper) prefix is used in many ranking systems for the next level up including military designations. The mayors of cities, which simultaneously comprise one of Germany's 112 urban districts usually bear this title. Urban districts are comparable to independent cities in the English-speaking world. However, also the mayors of some cities, which do not comprise an urban district, but often used to comprise one until the territorial reforms in the 1970s, bear the title Oberbürgermeister.