| Nioghalvfjerdsfjorden | |
| Pushpin Map: | Greenland |
| Pushpin Map Caption: | Location in Greenland |
| Location: | Arctic |
| Coords: | 79.55°N -21°W |
| Oceans: | Greenland Sea |
| Countries: | Greenland |
Nioghalvfjerdsfjorden is a fjord located in King Frederick VIII Land, in Northeast Greenland National Park of northeastern Greenland. It is located at latitude 79° N (hence the name, which in Danish means "the fjord of seventy-nine") between Lambert Land and Hovgaard Island. The fjord was named by the Denmark expedition in April 1907.[1] The 79° North Glacier, also called Nioghalvfjerdsbrae, drains into this fjord. The uninhabited Tobias Island is located 80 km east of the fjord.
In September 2020, satellite imagery showed that a big chunk of ice shattered into many small pieces from the last remaining ice shelf in Nioghalvfjerdsfjorden.[2]