Helen Marion Macpherson Mackay (23 May 1891 – 15 July 1965) was a British paediatrician. She made important contributions to the understanding of childhood nutrition and preventive healthcare. Mackay was the first woman fellow of the Royal College of Physicians.
- Occupation
- pediatrician, ornithologist
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
- 1891, May 23, 1891
- Died
- July 17, 1965
