Marron Curtis Fort (* October 24, 1938 in Boston) is a notable American-born German linguist and professor who specializes in the study of Saterland Frisian language and Low German (plattdeutsch) spoken in northern Germany.
Fort is a German citizen and lives in Leer.
Fort's work in print and appearances in radio and television have contributed greatly to the preservation and furthering of the Saterland Frisian language and Low German language and culture in general.