| Nielebock, Lisa | Lisa Nielebock | Director | 2007 | 2 | |
| Nielinger, Christian | Christian Nielinger | | | | 5 |
| Nielsen, - | - Nielsen | Actor | 1883 | 1 | |
| Nielsen, Anna | Anna Nielsen | Actor | 1889 | 1 | |
| Nielsen, Arne | Arne Nielsen | Lighting Designer | 1968 | 1 | |
| Nielsen, Arne Leif | Arne Leif Nielsen | Actor | 1974 - 1975 | 2 | |
| Nielsen, Asta | Asta Nielsen | Actor | 1925 | 1 | |
| Nielsen, Bentine | Bentine Nielsen | Actor | 1884 - 1888 | 2 | |
| Nielsen, Clay | Clay Nielsen | Actor | 2011 | 1 | |
| Nielsen, E. | E. Nielsen | Actor | 1886 | 1 | |
| Nielsen, Elna | Elna Nielsen | Costume Designer | 1953 | 1 | |
| Nielsen, Emma | Emma Nielsen | Actor | 1896 - 1897 | 2 | 1 |
| Nielsen, Erling | Erling Nielsen | Translator | 1966 | 1 | |
| Nielsen, Esther | Esther Nielsen | Actor | 1928 | 1 | |
| Nielsen, Florence | Florence Nielsen | Actor | 1928 | 1 | |
| Nielsen, Fredrikke Luise | Fredrikke Luise Nielsen | Actor | 1859 - 1880 | 14 | 2 |
| Nielsen, Gorm, Worsaae | Gorm Worsaae Nielsen | Actor | 1967 - 1993 | 7 | |
| Nielsen, Håkon Thorstensen | Håkon Thorstensen Nielsen | Actor | 2013 - 2017 | 2 | |
| Nielsen, Hans Otto | Hans Otto Nielsen | Actor | 1933 - 1966 | 10 | |
| Nielsen, Harald | Harald Nielsen | Actor | 1853 - 1861 | 6 | 2 |
| Nielsen, Hayley | Hayley Nielsen | Actor | 2016 | 1 | |
| Nielsen, Helena | Helena Nielsen | Actor | 2003 | 1 | 1 |
| Nielsen, Helga | Helga Nielsen | Actor | 1928 | 1 | |
| Nielsen, Holger | Holger Nielsen | Lighting Designer | 1935 - 1956 | 2 | |
| Nielsen, Hr. | Hr. Nielsen | Actor | 1877 - 1886 | 9 | |
| Nielsen, Ib | Ib Nielsen | Actor | 1953 | 1 | |
| Nielsen, Ingeborg | Ingeborg Nielsen | Costume Designer | 1976 - 1978 | 52 | |
| Nielsen, J. P. L. | J. P. L. Nielsen | Actor | 1864 - 1869 | 3 | 1 |
| Nielsen, Jakob | Jakob Nielsen | Actor | 1936 - 1975 | 7 | 1 |
| Nielsen, Jean | Jean Nielsen | Actor | 1850 | 1 | |
| Nielsen, Johannes | Johannes Nielsen | Actor, Director | 1901 - 1928 | 21 | 1 |
| Nielsen, Jørgen | Jørgen Nielsen | Actor | 1983 | 1 | |
| Nielsen, Katja | Katja Nielsen | Actor | 2013 | 1 | |
| Nielsen, Kenn, Lund | Kenn Lund Nielsen | Director, Producer | 2008 | 2 | |
| Nielsen, Kim | Kim Nielsen | Costume Designer, Designer | 2004 | 2 | 1 |
| Nielsen, Klaus | Klaus Nielsen | Actor | 1960 | 1 | |
| Nielsen, Kristine | Kristine Nielsen | Actor | 1983 | 4 | |
| Nielsen, Kurt, Erik | Kurt Erik Nielsen | Actor | 1960 | 1 | |
| Nielsen, Lars Emil | Lars Emil Nielsen | Actor, Dancer | 2017 - 2019 | 2 | 1 |
| Nielsen, Leonora Alexandra | Leonora Alexandra Nielsen | Actor | 1993 | 1 | |
| Nielsen, Leslie | Leslie Nielsen | Actor | 1959 - 1960 | 2 | |
| Nielsen, Linda | Linda Nielsen | Actor | 1994 | 1 | |
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