The magnitude and duration of the COVID-19 pandemic has highlighted the need for countries to continuously reflect and improve on their ongoing response. The World Health Organization (WHO) introduced the guidance for conducting COVID-19 intra-action reviews (IARs) in July 2020. As of November 25, 2022, 136 IARs have been conducted by 78 countries in all 6 WHO regions. IARs are country-led and outcomes country-owned, with the flexible methodology enabling countries to focus on COVID-19-related priority issues in their national and subnational contexts. WHO’s approach to promoting the use of IARs recognizes the importance of 3 learning modalities: countries learning through self-reflection, countries learning from each other, and WHO and partners learning from countries to improve WHO guidance and tools. Moving forward, the value of reflective learning in public health emergencies can be further enhanced by institutionalizing an ongoing learning mindset and translating reflective learning-based recommendations into policy change and action.