Community health nurses world-wide provide health promotion and preventative care, support and guidance as well as clinical care for people with long-term conditions or needing acute care at home and end-of-life care, across all age groups. The importance of health care in the community has been growing globally as health systems recognise both the economic and human need for people to remain in their communities rather than in hospital. Research in community nursing provides evidence to support policy, practice and education. This article describes the global contribution that the International Collaboration for Community Health Nursing makes towards disseminating evidence that could improve the lives and health of communities.