Nels \n(e)-ls\ as a boy's name is of Scandinavian origin. Variant of Nicholas (Greek) "victorius people".
For more information, see also related names Neil and Nelson.
Baby names that sound like Nels are Neils, Nils and Niels. Other similar baby names are Beals, Celso, Noel, Neely, Neel, Neal, Delos, Kelsy, Les, Neall, Neale, Niles, Nile, Niel, Neill, Neile, Nelsen, Newsy, Nilos, Nyles, Noll and Wells.