Geographic information systems (GIS) has been a valuable method for researchers in public health and health care. GIS health applications include mapping and spatial statistics for disease surveillance, health care services planning, health inequalities and so forth. In this workshop we will provide a retrospect of basic GIS concepts and software for preparing and mapping health data. We will also introduce a few GIS case studies on spatial accessibility in the health care field and spatial health risk assessment. Prior experience with GIS is not required but some familiarity with spatial data and Esri’s ArcGIS software is helpful.