John Malcolm (1814 – 16 June 1895) was an English surgeon, hydrotherapist, and activist.
[1] He was the youngest son of Major John Malcolm.
[3] Malcolm worked in England, Germany and South Africa.
He was resident physician at Bowness Hydropathic Establishment in Windermere for many years.
Malcolm believed that hydropathy combined with a vegetarian diet could be used to treat disease.