J H McKechnie 1808? – 1862? MD was an orthodox physician who converted to homeopathy.
In 1858, McKechnie took part in the Festival in aid of the London Homeopathic Hospital was held with many Aristocratic and minor gentry patrons attending, alongside Dr. Ayerst, William Bayes, Hugh Cameron, Edward Charles Chepmell, William Vallancy Drury, George Napoleon Epps, Arthur Guinness, Edward Hamilton, Frantz Hartmann, Amos Henriques, Joseph Kidd, Thomas Robinson Leadam, J Bell Metcalfe, Frederick Hervey Foster Quin, Henry Reynolds, John Rutherford Russell, Charles Caulfield Tuckey, George Wyld, Stephen Yeldham, and many others.
McKechnie was also a colleague of George Henry Burford, John Henry Clarke, Robert Thomas Cooper, Norman, John Hodgson Ramsbotham, Charles Thomas Knox Shaw, Percy Roberts Wilde, Dudley d’Auvergne Wright,
McKechnie practiced in Bath.
McKechnie submitted cases and articles to various homeopathic publications.