Birkum is a village in Odense Municipality, in the region of Southern Denmark, Denmark. Birkum lies at 41 m above sea level. The nearest city is Odense, 10.0 km to the northwest. Among the landmarks around are Nonnebakken (9.6 km), Viking Age Ring Fortresses (9.6 km) and Egeskov Castle (17.8 km). Among the natural features are Tornø (13.7 km) and Frøbjerg Bavnehøj (25 km).