A grouping of individuals, organizations and agencies organized on a nonhierarchical basis around common issues or concerns, which are pursued proactively and systematically, based on commitment and trust.

Reference: new definition

WHO actively initiates and maintains several health promotion networks around key settings and issues. These include, for example, the intersectoral healthy cities network, networks of health promoting schools, and WHO country networks for health promotion such as the WHO mega country initiative. Networks of networks are also being established. Examples include the WHO(EURO) initiative “Networking the networks” and global networking initiatives for health promotion in order to build a global alliance for health promotion.

Source: Health Promotion Glossary (1998), WHO/HPR/HEP/98.1