| Karl Hess Larsen | |
| Birth Date: | 3 September 1900 |
| Birth Place: | Haugesund, Norway |
| Death Place: | Norway |
| Citizenship: | Norway |
| Nationality: | Norwegian |
| Profession: | Politician |
| Office: | Governor of Østfold |
| Term Start: | 1951 |
| Term End: | 1966 |
| Predecessor: | Lyder Bull |
| Successor: | Jakob Modalsli |
| Office2: | Governor of Nordland |
| Term Start2: | 1940 |
| Term End2: | 1951 |
| Predecessor2: | Olaf Amundsen |
| Successor2: | Bue Fjermeros |
Karl Hess Larsen (1900–1966) was a Norwegian lawyer and politician. He served as the County Governor of Nordland county from 1940 until 1951, although he was deposed by the Nasjonal Samling government from 1941 to 1945 during the German occupation of Norway.[1] After the war, he was reinstated as governor. In 1951, he was appointed to be the County Governor of Østfold county, a position he held until his death in 1966.[2]