To identify and prioritize promising concepts for developing into NAMA proposals, the Lebanese Ministry of Environment in cooperation with the UNDP Low Emission Capacity Building (LECB) Programme engaged a range of national stakeholders and international experts to discuss and prioritize NAMA concepts based on a collaboratively designed selection process. The approach, which included a series of workshops on NAMA design and preparation, resulted in a prioritised shortlist of concepts to be developed into NAMA proposals in Lebanon. The process increased awareness across national government actors and other stakeholders around the concept of NAMAs, their origin, development and approaches to financing. It also developed an effective collaborative approach for prioritising NAMAs through discussion of selection criteria and relative weights of criteria and led to a strengthened stakeholder forum for future collaboration.