The policy brief details the critical challenges for the well-being of children in the context of the COVID-19 crisis and lays out the foundations of a Framework for Achieving the Well-Being of Children in the post-COVID-19 Decade to ensure that children are put at the centre of efforts to build back better. The Framework proposes five pillars of action, which includes developing a data framework for monitoring child well-being outcomes and policies and ensuring political leadership and commitment for child well-being. The brief also provides an overview summary of a webinar hosted by the OECD and the Institute for Inspiring Children’s Futures in October 2020. This webinar provided a platform for OECD member countries and child well-being experts to share examples of country or regional policies and initiatives aimed at promoting child well-being during the pandemic, and to start shaping a shared understanding of child well-being and the outcome objectives.