Ganderkesee (Northern Low Saxon: Gannerseer) is a municipality in Oldenburg district, in Lower Saxony, Germany.

Ganderkesee is located on the northern edge of a nature park called "Wildeshauser Geest".

The northernmost part of the community is in the glacial valley of the Weser.

The sandy, higher and hilly terrain of Geest joins south.

Ganderkesee includes 25 hamlets with about 31,200 residents: Ganderkesee, Almsloh, Bergedorf, Bookholzberg, Bookhorn, Bürstel, Elmeloh, Falkenburg, Grüppenbühren, Habbrügge, Havekost, Heide, Hengsterholz, Hohenböken, Holzkamp, Hoyerswege, Hoykenkamp, Immer, Neuenlande, Rethorn, Schierbrok, Schlutter, Schönemoor, Steinkimmen and Stenum.