This report provides a synthesis of the main findings and lessons arising from evaluations managed by the UN Office for the Coordination of Humanitarian Affairs (OCHA) – both OCHAinternal evaluations and Inter-Agency Humanitarian Evaluations – during the period 2014- 2017. This includes four crisis-specific evaluations of humanitarian responses in the Philippines (Typhoon Haiyan), South Sudan, the Central African Republic and the Syria crisis, together with global evaluations of the use of Common Humanitarian Funds and of multi-year planning. Much of the focus is on Transformative Agenda priorities, but the synthesis also attempts to highlight those findings most relevant to the post-World Humanitarian Summit (WHS) agenda, as well as those relating to OCHA’s own core functions.