Glasgow’s bid for the 2014 Commonwealth Games include admirable aspirations regarding the Games’ contribution to health improvement. However, lessons from previous events indicate that the event is not, in and of itself, sufficient to ensure improved health. Aim:To conduct a Health Impact Assessment (HIA) to assist in developing a legacy of health improvement for the Games. Objectives:• To take a partnership approach • To engage key decision makers at an early stage • To use a variety of techniques to engage stakeholders • To identify and prioritise the elements of the Games with respect to major negative effects to be mitigated, those which provide realistic positive opportunities and those which are likeliest to add value • To make recommendations and continue to engage with decision makers to influence strategies for health improvement Methods:A systematic literature review of the health impacts of previous mega-sporting events was conducted. The stakeholder involvement stage of the HIA involved a process of engagement comprising five parts: • an event for key decision makers • presentations to existing community groups • an electronic and paper-based questionnaire • interactive workshops and feedback sessions • the Glasgow household survey. Results:Findings and recommendations are made under 13 key themes which have emerged from the HIA process. The 5 themes which represented the top priorities for Glasgow's people included 2014 infrastructure facilities, civic pride, image of Glasgow, regeneration and economy/employment. Decision-makers responsible for the Games Legacy Strategy have embraced the findings and recommendations of the HIA and are using it to inform their approach. Conclusion:The HIA of the 2014 Commonwealth Games has successfully laid the groundwork to assist in the development of a sustainable legacy of health improvement. Evaluation of the extent to which the HIA recommendations were incorporated will be conducted next year.