The Portuguese Healthy Cities Network is an Association of Municipalities, formally established on October 10th 1997, comprising the Municipalities of Amadora, Bragança, Lisboa, Loures, Montijo, Odivelas, Oeiras, Palmela, Resende, Seixal, Setúbal, Viana do Castelo, and later also Torres Vedras. Nowadays, the Portuguese Healthy Cities Network is under the political and technical co-ordination of the Municipality of Seixal.

The mission of this Association is to nationally spread and promote the Healthy Cities Project and the ideas that support e.g. the holistic approach to health, and the importance of the social determinants of health for the improvement of quality of life.

It also aims to define local strategies in order to obtain health gains and enhance the co-operation and communication among the Municipalities that integrate the Portuguese Network and the National Networks participating in the Healthy Cities Project.