Reports suggest that the Old Victoria Infirmary in Glasgow has been used for scenes in Outlander season 3. The articles point to the wards being used to depict the hospital where Claire works as a surgeon.
The Old Victoria Infirmary is an unused hospital on Glasgow’s south side. A new modern hospital has been built nearby. The result is that the old hospital has been lined up for redevelopment. Anybody wanting to see this location should bear this in mind if they want to visit the site.