Uderballen
Uderballen is a German place name:
- Uderballen (1938–1946 Otterwangen ), Insterburg district, East Prussia, since 1946: Iswilino (Kaliningrad, Chernyachovsk) , settlement in Chernyachovsk Raion, Kaliningrad Oblast , Russia
- Uderballen , historical name of Groß Uderballen (1938–1946 Großudertal ), Wehlau district, East Prussia, since 1946: Demidowo (Kaliningrad) , settlement in Gwardeisk Rajon, Kaliningrad Oblast, Russia