Résumé : Despite the consensus on the importance of evidence based health information for decision28 making andhealth policy formulation, quality information is not always available. This situation led the WHO in 2009to recommend the establishment of an African Health Observatory and National Health Observatories. TheWHO recommended 4 phases approach for the establishment of National Health Observatories was used inCameroon: the preliminary phase, start‐up, strengthening and full operation. Despite a non‐optimal institutionalpositioning, the Cameroon’s Health Observatory is in the strengthening phase and contributes toevidence‐based decision making in the health system. A strong political commitment is fundamental fromthe beginning of the project. The establishment of National Health Observatories calls for genuine nationalownership, both of the process as a whole and of the tool itself. WHO should regularly assess the progress madein the establishment of National Health Observatories in different countries and provide feedback to them. Astep‐by‐step approach, jointly validated by national stakeholders in a roll‐out plan, would be more appropriatefor the sustainability of the work of National Health Observatories.