The Blanda is a river in Iceland which flows northwards from the northwest side of the Hofsjökull glacier into Húnaflói bay at Blönduós.
However research has shown that large quantities of water flow in sub-surface streams to lake Þingvallavatn (some 50 km to the south and easily accessible to tourists) and reappear in springs in and around the lake, while the same happens on the west side, giving rise to various tributaries of the Hvítá River as well as some rivers flowing north towards Húnaflói.