In developing countries, resource-dependent communities are disproportionately affected, yet less equipped to cope with the adverse impacts of climate change. Though generally associated with institutional adjustments, technology transfer, absorption and diffusion provide outstanding opportunities to increase the resilience of vulnerable communities and the ecosystems on which they rely to the risks of climate variability and extremes. In spite of the potential for technology diffusion as it emerges from the international regime, scientific evidence suggests that global efforts to transfer climate-smart technologies needed for successful adaptation in developing countries have fallen short. This paper examines current challenges and opportunities related to technology transfer for climate change adaptation in developing countries, as well as the contribution of the United Nations Development Programme - Climate Change Adaptation Team (UNDP-CCA) in promoting technology absorption and diffusion at the country level.