| Age | 87 (age at death) |
| Birthday | 9 September, 1892 |
| Died | 24 January, 1980 |
| Zodiac Sign | Virgo |
| Nationality | Swedish |
| Occupation | Sailor |
Nils Johan Hugo Westermark (September 9, 1892 – January 24, 1980) was a Swedish sailor who competed in the 1912 Summer Olympics. He later became a radiologist, and described the Westermark sign.
