Niels

Niels is a male given name, equivalent to Nicholas, which is common in Denmark, Belgium, Norway (formerly) and the Netherlands. The Norwegian and Swedish variant is Nils. The name is a developed short form of Nicholas or Greek Nicolaos, after Saint Nicholas. Its pet form is Nisse, and female variants are Nielsine, Nielsina, and Nielsa.

Notable people with the name include: ower
 * Niels, King of Denmark (1065–1134)
 * Niels, Count of Halland (died 1218)
 * Niels Aagaard (1612–1657), Danish poet
 * Niels Aall (1769–1854), Norwegian businessman and politician
 * Niels Henrik Abel (1802–1829), Norwegian mathematician
 * Niels Arestrup (born 1949), French actor
 * Niels Viggo Bentzon (1919–2000), Danish composer and pianist
 * Niels Bohr (1885–1962), Danish physicist and Nobel Prize recipient
 * Niels Busk (born 1942), Danish politician
 * Niels Ebbesen (died 1340), Danish squire and national hero
 * Niels Feijen (born 1977), Dutch pool player
 * Niels Ferguson (born 1965), Dutch cryptographer
 * Niels Friis (died 1508), Roman Catholic prelate and bishop of Viborg, succeeding Niels Glob
 * Niels Gade (1817–1890), Danish musician
 * Niels Glob, Roman Catholic prelate and bishop of Viborg (1478–1498)
 * Niels Giffey (born 1991), German basketball player
 * Niels Hansen Jacobsen (1861–1941), Danish sculptor
 * Niels Helveg Petersen (1939–2017), Danish politician
 * Niels Hemmingsen (1513–1600), Danish theologian
 * Niels Holst-Sørensen (1922–2023), Danish athlete and general
 * Niels Jonsson Stromberg af Clastorp (1646–1723), Swedish soldier and politician
 * Niels Juel (1629–1697), Danish admiral
 * Niels Christian Kaldau (born 1974), Danish badminton player
 * Niels Kaas (1535–1594), Danish politician
 * Niels Kaj Jerne (1911–1994), Danish immunologist and Nobel Prize recipient
 * Niels Krabbe (born 1951), Danish ornithologist
 * Niels Lan Doky (born 1963), Danish jazz pianist
 * Niels de Langen (born 1998), Dutch para-alpine skier
 * Niels Lauritz Høyen (1798–1870), Danish art historian
 * Niels Meyn (1891–1957), Danish author
 * Niels Neergaard (1854–1936), Danish historian and politician
 * Niels Nikolaus Falck (1784–1850), Danish jurist and historian
 * Niels-Henning Ørsted Pedersen (1946–2005), Danish jazz bassist
 * Niels Ryberg Finsen (1860–1904), Danish physician and Nobel Prize recipient
 * Niels Schneider (born 1987), Canadian actor
 * Niels Steensen, also known as Nicolas Steno (1638–1686), Danish scientist and Catholic bishop
 * Niels Treschow (1751–1833), Norwegian philosopher and politician
 * Niels van den Berge (born 1984), Dutch politician
 * Niels van der Zwan (born 1967), Dutch rower
 * Niels van Steenis (born 1969), Dutch r
 * Niels Henrik Kolderup