Windeby is a municipality in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany. It is situated approximately 2 km west of Eckernförde.Windeby is part of the Amt Windeby. The seat of the Amt is in Eckernförde.Windeby is east of the municipality of Fleckeby or Osterby, but north of Goosefeld.