Gesnerus was a biannual peer-reviewed academic journal covering the history of medicine and science that was published by the Schwabe Verlag on behalf of the Swiss Society for the History of Medicine and Sciences, of which it was the official journal. It published original articles, book reviews, reports on current developments, and announcements in English, German, French, and Italian. The journal was established in 1864 and published until 2020, when it merged into the European Journal for the History of Medicine and Health.

The journal was abstracted and indexed in: