Kær (Sønderborg-Kær) is a place, that 1993 belonged to Denmark and was situated in the administrative region Sønderjylland.
Kær (Sønderborg-Kær) was formerly part of the German Empire. In the German Empire, the place was called Kjär. The place is now called Kær (Sønderborg-Kær) and belongs to Denmark.