Wagria

thumb|Historical map of Wagria (ca. 1682-88) Wagria (, Waierland or Wagerland) is the northeastern part of Holstein in the German state of Schleswig-Holstein, corresponding roughly to the districts of Plön and Ostholstein. The word "Wagria" is derived from the Slavic Lechites tribe of Wagri.

== Geography == thumb|225px|Schwentine, Wagria's border river. In the Middle Ages, and as still shown on early modern maps, Wagria was bordered on the north and east by the Baltic Sea from the Kiel Fjord to Lübeck Bay, and inland by the rivers Schwentine and Trave. Today, Wagria generally refers just to the Oldenburg Peninsula (Oldenburgische Halbinsel) in Ostholstein.