| Clinique Saint-Jean Kliniek Sint-Jan | |
| Address: | Boulevard du Jardin Botanique / Kruidtuinlaan 32 |
| Region: | B-1000 City of Brussels, Brussels-Capital Region |
| Country: | Belgium |
| Healthcare: | Private ASBL |
| Funding: | Non-profit |
| Type: | District General, Teaching |
| Religious Affiliation: | Roman Catholic |
| Affiliation: | Université catholique de Louvain (UCLouvain) |
| Patron: | Saint John |
| Network: | Réseau Santé Louvain H.uni |
| Emergency: | Yes |
| Beds: | 558 |
| Opened: | 1195 |
| Constructed: | 1851 (Botanique campus) |
| Former-Names: | Clinique Saint-Jean-op-de-Poel |
The Clinique Saint-Jean (French) or Kliniek Sint-Jan (Dutch), meaning "Saint John Clinic", and historically known as the Saint-Jean-op-de-Poel hospital, is a private non-profit general hospital located in central Brussels, Belgium. Founded in 1195,[1] it is Brussels' oldest hospital.[2] Through the eight centuries of its existence, the Clinique Saint-Jean has been the founder of other major hospitals in the Brussels-Capital Region and of two nursing schools. It is currently part of the Réseau Santé Louvain network of the Université catholique de Louvain (UCLouvain).[3]