Niels Petersen

• Niels Petersen (gymnast), Danish Olympic gymnast
• Niels Helveg Petersen, Danish politician
• Niels Petersen (sport shooter), Danish former sport shooter
• Niels Petersen (weightlifter), Danish weightlifter
• Niels Petersen, Danish pioneer of the town of Tempe, Arizona and owner of the historic Niels Petersen House