Conducting research in a humanitarian crisis raises a variety of particular challenges including the following: How do you make sure your research does not cause further harm to people affected by a crisis? What can you do to ensure high-quality data collection with an inexperienced team? How is humanitarian response coordinated and how can this structure be used to support research? How can the local community be empowered throughout the process of conducting research? This study explores these questions and more by looking at lessons learnt from a large-scale humanitarian research project conducted in Myanmar. Drawing on a variety of methods including 22,280 household-level interviews, mapping, and focus group discussions, the humanitarian profiling exercise aimed to shed light on the situation of Rohingya and Rakhine displaced by the 2012 inter-communal conflict