Coester

Coester is a surname of German origin. It is an Anglicized variant of Köster or Küster, or a variant of Kuster/Koster. These names derive from the Middle High German küster, meaning sexton or church caretaker. The spelling Coester likely arose through transliteration, regional dialect shifts, or immigration records in English-speaking countries.

Geographic distribution: The name is found primarily in German-speaking countries and in the United States and other nations with German immigrant communities. In the U.S., it appears in archival records dating from the 19th and 20th centuries, with families establishing roots in various regions.

Variants include Koester, Köster, Kuster, and Koster. The form Köster preserves the umlaut; Koester is common in English-speaking contexts; Kuster and Koster are additional cognate spellings.

Notable bearers: The surname has been borne by individuals across fields such as science, engineering, and the arts, though no single bearer dominates its recognition. As with many surnames of occupational origin, bearers may be found in diverse professions.

See also: Koster, Koester, Köster. For genealogical research, it can be helpful to consider spelling variants.