This publication introduces the Healthy Communities Partnership led by Grey Bruce Public Health, in Ontario, as an example of Health in All Policies (HiAP). This case summary is part of a series developed by the Canadian Network for Health in All Policies to document the current state and variety of HiAP initiatives being implemented in Canada. It is intended for public health actors and other actors interested in HiAP, and aims to advance knowledge of HiAP, highlight effective practices,……