Agardhdalen is a valley between Sabine Land and Heer Land at Spitsbergen, Svalbard. It forms a continuation of the bay Agardhbukta, at the western side of Storfjorden. The valley is named after botanist Jacob Georg Agardh.[1] The river Agardhelva flows from Sveigbreen and Elfenbeinbreen, through Agardhdalen, with outlet into Agardhbukta.[2]