The Nissan (Swedish pronunciation: [ˈnɪ̂sːan]) is a 200 km long river in southwest Sweden.

It ends in the Kattegat bay of the North Sea in Halmstad.

The straight middle and upper course of Nissan follows a branch of the Protogine Zone – a zone of crustal weakness in western Sweden.

[3] Nissan drains the western part of the South Småland peneplain.

[4]