| 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 | |
| Nielsen, Lisa | Lisa Nielsen | Dancer | 2017 | 1 | |
| Nielsen, Mads, M. | Mads M. Nielsen | Actor | 2008 | 1 | 2 |
| Nielsen, Mari Lange | Mari Lange Nielsen | Actor | 1995 | 1 | |
| Nielsen, Marianne | Marianne Nielsen | Actor | 1985 - 2018 | 83 | 1 |
| Nielsen, Marie | Marie Nielsen | Actor | 1913 | 4 | |
| Nielsen, Martinius | Martinius Nielsen | Actor | 1886 - 1911 | 21 | 2 |
| Nielsen, Mathilde | Mathilde Nielsen | Actor | 1898 - 1926 | 3 | 1 |
| Nielsen, Meentje | Meentje Nielsen | Costume Designer | 2014 - 2016 | 3 | |
| Nielsen, Mette, Sofie | Mette Sofie Nielsen | Adaptation | 1979 | 1 | 1 |
| Nielsen, Mogens Frohn | Mogens Frohn Nielsen | Actor | 1999 | 1 | |
| Nielsen, Mr. | Mr. Nielsen | Actor | 1877 - 1885 | 5 | |
| Nielsen, Nathalie | Nathalie Nielsen | Actor | 1901 - 1902 | 12 | |
| Nielsen, Oda | Oda Nielsen | Actor | 1871 - 1907 | 23 | 2 |
| Nielsen, Otto | Otto Nielsen | Actor | 1909 | 25 | |
| Nielsen, Peter | Peter Nielsen | Actor | 1856 - 1888 | 22 | 1 |
| Nielsen, Peter | Peter Nielsen | Actor | 1922 | 1 | |
| Nielsen, Peter Even | Peter Even Nielsen | Actor | 1853 - 1862 | 5 | 1 |
| Nielsen, Pil | Pil Nielsen | Actor | 2013 | 1 | |
| Nielsen, Poul | Poul Nielsen | Actor, Director | 1885 - 1937 | 16 | 1 |
| Nielsen, Roma | Roma Nielsen | Actor | 1924 | 1 | |
| Nielsen, Scott L. | Scott L. Nielsen | Composer, Sound Designer | 2009 | 2 | |
| Nielsen, Silje Hamre | Silje Hamre Nielsen | Actor | 2006 | 1 | |
| Nielsen, Sydne | Sydne Nielsen | Actor | 2011 | 1 | |
| Nielsen, Torben | Torben Nielsen | Actor | 2002 | 1 | |
| Nielsen, Ulla, Thor | Ulla Thor Nielsen | Dancer | 1961 | 1 | |
| Nielsen, Vivian | Vivian Nielsen | Adaptation | 2013 | 1 | |
| Nielson, Hortence | Hortence Nielson | Actor | 1908 - 1921 | 2 | |
| Nielson, Karla | Karla Nielson | Actor | 2000 | 1 | |
| Nielson, Kim | Kim Nielson | Designer | 2000 | 1 | |
| Nielson, Mark | Mark Nielson | Actor | 1965 | 1 | |
| Nielson, Stephanie | Stephanie Nielson | Actor | 2004 | 1 | |
| Niemann-Heidmann, Clarissa | Clarissa Niemann-Heidmann | Actor | 1921 - 1926 | 2 | |
| Niemann-Raabe, Hedwig | Hedwig Niemann-Raabe | Actor | 1880 | 3 | 3 |
| Niemann, Annemarie | Annemarie Niemann | Actor | 1926 - 1939 | 3 | |
| Niemann, Christof | Christof Niemann | Actor | 1961 | 1 | |
| Niemann, Edda | Edda Niemann | Mask Maker | 1999 | 1 | |
| Niemann, Frk. | Frk. Niemann | Actor | 1879 | 1 | |
| Niemann, Frl. | Frl. Niemann | Actor | 1878 | 1 | |
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