This working paper identifies and explores the issues that should be considered when undertaking ethical research involving children in humanitarian settings. Research grounded in sound ethical principles is critical in ensuring that children’s rights are respected throughout the process and beyond and that the research itself is relevant, useful and valid. This paper examines both the universal (i.e. relevant to all research involving children) and specific ethical issues that may arise when involving children in research in humanitarian settings. This is undertaken through an examination of the literature, a review of relevant case studies and a reflection on the ethical issues highlighted in UNICEF’s Procedure for Ethical Standards in Research, Evaluation, Data Collection and Analysis (the Ethics Procedure). The latter is used as a baseline for generic ethical standards when involving children in research. The key findings of this overview highlight that many of the ethical issues that are present in other settings remain relevant and applicable in the context of humanitarian settings. These ethical issues include: an institution’s capacity to appropriately and respectfully engage children in research, understanding power relations, securing informed consent and assent, ascertaining harms and benefits, maintaining privacy and confidentiality, and ensuring appropriate communication of findings