Hermann Arthur Thost (9 June 1854, in Zwickau – 22 December 1937, in Hamburg) was a German physician and otolaryngologist.
After graduation, he remained in Heidelberg as an assistant to pathologist Nikolaus Friedreich.
He was interested in local politics, being known for his advocacy of public medical insurance.
[1] Along with dermatologist Paul Gerson Unna, the Unna-Thost syndrome is named, a rare hereditary disorder affecting the palms and soles.
He described the disease in paper titled Über erbliche Ichtyosis palmaris et plantaris cornea (1880).