- Orphanet is an international portal for information on rare diseases and orphan drugs, with its headquarters in France. It began as a French pilot project in 1997 and became a Joint Action of the EU in 2000.
- The portal includes an extensive database on rare diseases, with information on diagnoses, treatments, epidemiology and more. It aims to provide knowledge on rare diseases to healthcare professionals, researchers, patients and caregivers.
- In the UK, Orphanet data was previously contributed through Manchester University but is now managed by Public Health England since 2015.