Salomon Ehrmann (December 19, 1854 - October 24, 1926) was a Jewish-Austrian dermatologist and histologist born in the village of Ostrovec, today part of the Czech Republic.
He was an important member of the so-called Vienna School of Dermatology, a group founded by Ferdinand von Hebra (1816–1888).
Ehrmann was a pupil of histopathologist Carl Wedl (1815–1891) at the University of Vienna.
He specialized in the field of syphilology, and is remembered for his research involving the parasite Spirochaetae pallida (the causative agent of syphilis), and its spread throughout the human body.
Among his written works was a comparative diagnostic atlas of skin diseases called Vergleichend-diagnostischer Atlas der Hautkrankheiten und der Syphilide.