Halvdan Nielsen
| full name | Halvdan Nicolaus Nielsen | |
| nationality | Norway (NOR) | |
| born | March 1874 | in unknown |
| Navigation | Championships | World Records |
Championships - Medal table and top 10 positions
| kampioenschap | gold | silver | bronze | 4th-6th | 7th-10th | starts |
| WCh Allround | 0 | 0 | 0 | 0 | 0 | 1 |
Championships - Results
| year | position | championship | place | |
| 1894 | NC1 | WCh Allround | Neglingeviken | SWE |
