Jesse Mercer Gehman (January 17, 1901 – 1976) was an American naturopath, vegetarianism activist and amateur wrestler associated with the natural hygiene and physical culture movement.

[1] Gehman was Chairman of the First American Vegetarian Convention held at Lake Geneva, Wisconsin in 1949.

[2] He was Vice-President of the International Vegetarian Union (1960–1977), he was also President of the American Naturopathic Association.

[4] Gehman worked as an associate editor for Bernarr Macfadden's Physical Culture magazine.

"[7] He was secretary of the Citizens Medical Reference Bureau from the 1930s–1950s, which had connections to the Anti-Vaccination League of America.