| Office: | County Governor of Hedmark |
| Term Start: | 1 August 1926 |
| Term End: | 30 September 1935 |
| Primeminister: | Ivar Lykke Christopher Hornsrud J. L. Mowinckel Peder Kolstad Jens Hundseid Johan Nygaardsvold |
| Predecessor: | Thorvald Løchen |
| Successor: | Knut M. Nordanger |
| Office2: | Minister of Justice |
| Term Start2: | 26 July 1926 |
| Term End2: | 28 January 1928 |
| Primeminister2: | Ivar Lykke |
| Predecessor2: | Ingolf E. Christensen |
| Successor2: | Cornelius Holmboe |
| Birth Date: | 12 May 1865 |
| Birth Place: | Folldal, Østerdalen, Hedmark, Sweden-Norway |
| Death Place: | Ljan, Oslo, Norway |
| Spouse: | Aagot Sørby [1] |
| Party: | Conservative |
Knud Iversen Øyen (12 May 1865 – 14 November 1942) was a Norwegian jurist and politician of the Conservative Party. He was a member of the cabinet Lykke, heading the Ministry of Justice from 1926 to 1928.[2] He served as County Governor of Hedmark from 1926 to 1935.