Refugee children are some of the most vulnerable populations in the world. Early Childhood Education and Care (ECEC) for refugee children can have positive impacts on child outcomes, however most of the evidence stems from research from high income countries. This paper reports on a critical review, carried out to evaluate what we know about benefits and the quality of ECEC programmes for refugee children in low- and middle-income countries (LMICs). 15 studies were identified, located in refugee camps and resettlement contexts in seven different countries. Whilst acknowledging limitations due to the small number and low rigour of the studies included in this review, the findings indicate benefits of ECEC participation for children across developmental domains, showing particular the potential to support socio-emotional learning and emotional recovery. Findings confirm the challenge of resources for the provision of high-quality refugee ECEC in LMICs, including lack of materials, space, and training and support needs of staff. By bringing together what we learn from the existing research in the field, this review helps to identify successful strategies, that call for play-based approaches, interactions that focus on socio-emotional support and recovery, the engagement of communities and families, and the provision of culturally responsive environments. These findings strengthen the wider knowledge base about the characteristics of ECEC provision which are important for supporting refugee children and families in lower-resource contexts.