Niels Petersen

Niels Petersen may refer to:


 * Niels Petersen (gymnast) (1885–1961), Danish Olympic gymnast
 * Niels Helveg Petersen (1939–2017), Danish politician
 * Niels Petersen (sport shooter) (born 1932), Danish former sport shooter
 * Niels Petersen (weightlifter) (born 1918), Danish weightlifter
 * Niels Petersen (1845–1923), Danish pioneer of the town of Tempe, Arizona and owner of the historic Niels Petersen House