Idodalen is a valley in Dickson Land at Spitsbergen, Svalbard.
It has a length of about 5.5 kilometers, and is located between the mountains of Kongressfjellet and Heimenfjellet.
The valley is named after the constructed language of Ido.
[1] The river of Idoelva flows through the valley.
This Spitsbergen location article is a stub.