The Common Country Assessment (CCA) and the United Nations Sustainable Development Cooperation Framework were adopted as strategic planning tools for the UN system. The analytical frame of the CCA is directly linked to key elements of the programming principles in the Cooperation Framework Guidance and the implementation of the 2030 Agenda for Sustainable Development. This analytical frame delivers thematic analyses based on the principles of leaving no one behind (LNOB), human rights, gender equality & women’s empowerment, sustainability & resilience, and accountability. To strengthen the incorporation of LNOB perspectives in the CCA process, the Peace, and Development Unit (PDU) in the UN Resident Coordinator’s Office Kenya and the Folke Bernadotte Academy (FBA) with support from the Conflict Analysis Group and the University of Nairobi, conducted a multi-layered analysis of who is left behind or at risk of being left behind in Kenya. This analysis informs the peace and conflict dynamics from the perspective of the most marginalized, disenfranchised, and disadvantaged communities in Kenya. The Common Country Assessment (CCA) and the United Nations Sustainable Development Cooperation Framework were adopted as strategic planning tools for the UN system. The analytical frame of the CCA is directly linked to key elements of the programming principles in the Cooperation Framework Guidance and the implementation of the 2030 Agenda for Sustainable Development. This analytical frame delivers thematic analyses based on the principles of leaving no one behind (LNOB), human rights, gender equality & women’s empowerment, sustainability & resilience, and accountability. To strengthen the incorporation of LNOB perspectives in the CCA process, the Peace, and Development Unit (PDU) in the UN Resident Coordinator’s Office Kenya and the Folke Bernadotte Academy (FBA) with support from the Conflict Analysis Group and the University of Nairobi, conducted a multi-layered analysis of who is left behind or at risk of being left behind in Kenya. This analysis informs the peace and conflict dynamics from the perspective of the most marginalized, disenfranchised, and disadvantaged communities in Kenya.