Cluster-level health intelligence describes contextualised, analysed information (data and evidence) to inform local action or decision making. Robust primary care cluster action plans will therefore be informed by evidence on population health needs and evidence on effective interventions to improve health and reduce inequalities. Evidence requires careful interpretation; potential actions require prioritisation and implementation plans will need evaluation. Local public health teams and cluster development staff within health boards have a key role to play in supporting clusters to undertake these planning tasks. Recognising this, improving access to information and provision of relevant health intelligence is one of the four themes within the transformation work programme of the Public Health Wales and Primary Care Division. Through the cluster development programme and other actions, the Primary Care Division in partnership with others seek to help the wider health system meet these challenges.