This homonymy page lists people with the same surname. Must not be confused with Costner.
The Dutch surname Coster refers to the profession of sacristan (nl: koster). Koster or Ceuster are possible variants.
The name can be declined with the article: De Coster, De Koster, De Ceuster; eventually joined Decoster, Dekoster, Deceuster.
The German name Köster has the same meaning.
The name can also take the filiation suffix -s: Costers, Kosters, Ceusters, Kösters. Patronymemodify the code
Coster is a surname especially worn by: Costerchange code Variouschange code
wiki