Yngvar Karlsen
| full name | Yngvar Hafsund Karlsen | |
| nationality | Norway (NOR) | |
| born | June 1920 | in Eidanger (Norway) |
| died | July 2001 | in Skien (Norway) |
Championships - Medal table and top 10 positions
| kampioenschap | gold | silver | bronze | 4th-6th | 7th-10th | starts |
 Olympic Games | 0 | 0 | 0 | 0 | 0 | 2 |
| WCh Allround | 0 | 0 | 0 | 1 | 0 | 1 |
 ECh Allround | 0 | 0 | 0 | 1 | 1 | 2 |
Championships - Results
| year | position | championship | place | |
| 1947 | 5 | WCh Allround | Oslo | NOR |
| 4 | ECh Allround | Stockholm | SWE | |
| 1952 | 20 | Olympic Games 5000 meters | Oslo | NOR |
| 18 | Olympic Games 10,000 meters | Oslo | NOR | |
| 8 | ECh Allround | Ă–stersund | SWE | |
