Randers Fjord is a 30 km (19 mi) long Danish fjord in Northern Europe leading to the sea of Kattegat, between Denmark and Sweden. The fjord is the outlet from Denmark's longest river, Gudenå. The upper 13 km (8.1 mi), starting at the town Randers, looks more like a broad river than a fjord. The lower 17 km (11 mi) have extensive reed plains bordering the shores To some extent this inhibits the recreational use of and access to the fjord. In some places, the reed beds are harvested for traditional roof thatching. The shallow eastern part of the fjord is known as Grund Fjord, being an extension of Alling Å.

Grenaa is a Danish town and seaport on the east coast of the Jutlandic peninsula. Tourism, education and commerce are important sectors in the economy of Grenaa. It is the only larger town on Djursland. Grenaa is the municipal seat, and the largest town, in Norddjurs Municipality, which covers the northern half of Djursland.