Gratangen (fjord)

 or is a fjord in Gratangen Municipality in Troms og Finnmark county, Norway. The long fjord is an arm off of the main Astafjorden. The municipality of Gratangen surrounds the fjord and is named after the fjord. The fjord is about wide, except for a very narrow wide point in the middle of the fjord where the village of Årstein is located. At that point, the Årstein Bridge on Norwegian County Road 825 crosses the fjord.
The villages of Fjordbotn and Elvenes are located at the innermost part of the fjord. Årstein, Åkeneset, and Foldvik are located along the central part of the fjord. Myrlandshaugen and Hilleshamn are located at the mouth of the fjord. The European route E06 highway passes about southeast of Fjordbotn and Elvenes.