Behavioural science can strengthen entrepreneurship development efforts by evidencing how enablers and barriers in the entrepreneurship system shape decision-making and therefore behavioural outcomes. The Behavioural Insights Toolkit for Entrepreneurship Programming is aimed at practitioners looking to complement their entrepreneurship policy and practice with behavioural approaches. It is the result of research undertaken by UNDP’s Regional Innovation Team in the Arab States, ten UNDP Country Offices across the Arab States, and the Behavioural Insights Team. The toolkit is accompanied by a set of cards that can be used to brainstorm on behavioural barriers facing entrepreneurs and levers that could be tested to overcome these.