Nielsen (surname)


Nielsen is a Danish patronymic surname, literally meaning son of Niels, Niels being the Danish version of the Greek male given name Νικόλαος, Nikolaos. It is the most common surname in Denmark, shared by about 5% of the population. It is also used in Norway, although the forms Nelsen and Nilsen are more common. In Sweden the parallel form is Nilsson. Nielsen is also in use in the Faroe Islands. The frequent occurrences of Nielsen as a surname outside Denmark is due to emigration. Immigrants to English-speaking countries sometimes changed the spelling to Nielson, Nelsen, Nelson, Neilson, or Neilsen.

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