Mary MacLennan

Mary MacLennan is the Senior Advisor on Behavioural Science in the UN Executive Office of the Secretary-General where she leads behavioural science efforts. She is also the Lead of the UN Behavioural Science Group in the UN Innovation Network. In these roles she expands and supports behavioural science application across the UN.

As a behavioural scientist with over a decade of experience, she works with governments, international organisations and academic institutions to apply behavioural science to tackle real world challenges. This has included in the foundational stages of government behavioural science teams and as an expert advisor to the OECD and UN Women, among other international organisations. She is currently a Senior Visiting Fellow at the London School of Economics.