Peer support, or people drawing on shared experiences to help each other with knowledge, information and support, is a simple but powerful approach to health and wellbeing. Its value has long been recognised by people and carers, as well as by clinicians. It is particularly valuable for those with long term conditions such as Type 1 diabetes, as those newly diagnosed can learn from the experiences of others in gaining knowledge skills and confidence, which they often find value in passing on in their turn. This document seeks to set out “what good looks like” for peer support – or what people should expect from a well-functioning group, with a specific focus on Type 1 diabetes.