| Niels Knudsen | |
| Nationality: | Danish |
| Occupation: | Architect |
| Birth Date: | 15 October 1904 |
| Birth Place: | Vallensbæk, Denmark |
| Death Place: | Søllerød, Denmark |
Niels Knudsen (15 October 1904 - 12 August 1987) was a Danish architect. His work was part of the architecture event in the art competition at the 1928 Summer Olympics.[1]