Nielsen Dens pronunciation: [ˈnelsn], is a Dens patronymic surname, literally meanin son o Niels, Niels bein the Dens version o the Greek male gien name Νικόλαος, Nikolaos (cf. Nicholas). It is the seicont maist common surname in Denmark, shared bi aboot 5% o the population[1]. It is an aa uised in Norrowey, awtho the form Nilsen is mair common[2]. In Swaden the parallel form is Nilsson. Nielsen is an aa in uise in the Faroe Islands. The frequent occurrences o Nielsen as a surname ootside Denmark[3] is due tae emigration. Immigrants tae Inglis-speakin kintras aften chynged the spellin tae Nielson, Nelsen, Nelson or Neilson.