|Men's canoe sprint|
|2005 Zagreb||K-2 1000 m|
As of 2011, Mattis Næss is a teacher in science and mathematics.
- ICF medalists for Olympic and World Championships – Part 1: flatwater (now sprint): 1936–2007 at WebCite (archived 2009-01-21). Additional archives: Wayback Machine.
- ICF medalists for Olympic and World Championships – Part 2: rest of flatwater (now sprint) and remaining canoeing disciplines: 1936–2007 at WebCite (archived 2009-11-09)
- Strømnes, André (9 April 2008). "Næss vant OL-duellen mot Norenberg". Budstikka (in Norwegian).
- Sports-reference.com profile