Knowledge mobilisers (people who move knowledge into action) face a number of challenges. These include making sense of diverse definitions, navigating through fragmented literature and identifying helpful models and tools. This paper presents a framework designed to help. Based on a review of 47 knowledge mobilisation models, it consists of four questions: Why is knowledge being mobilised? Whose knowledge is being mobilised? What type of knowledge is being mobilised? How is knowledge being mobilised? These questions and accompanying categories can help knowledge mobilisers reflect on, communicate and evaluate their aims and objectives, increasing clarity and understanding across the field.