Niels Nielsen (sailor)
 | ||
| Medal record | ||
|---|---|---|
| Men's Sailing | ||
| Silver | 1920 Antwerp | 7 metre class |
Niels Marius Nielsen (October 5, 1883 – 1961) was a Norwegian sailor who competed in the 1920 Summer Olympics.
He was a crew member of the Norwegian boat Fornebo, which won the silver medal in the 7 metre class.