This guidance on trauma-informed approaches to data collection is intended to serve as a resource for evaluators in the international development community. As EnCompass continues to gain experience with trauma-informed research and evaluation approaches in various contexts, we also continue to invest our efforts in do-no-harm and good practices for data collection. The guidance includes a brief explanation of trauma and how retraumatization can occur during data collection events and outlines the purpose and importance of applying trauma-informed approaches to evaluation work. The principles and recommended techniques provide ways to operationalize these approaches to evaluation, with the aim of ensuring ethical, respectful, equitable, and empowering evaluations.