Small island developing states (SIDS) are recognized as a special case for sustainable development due to the unique set of challenges and vulnerabilities they face. While SIDS are a diverse group of nations, most share characteristics of small size, limited land availability, insularity, susceptibility to natural disasters and deep integration into global markets that make them particularly vulnerable to global environmental and economic change processes. Although there has been considerable research into the impacts of global change processes on small island vulnerability, much less attention has been paid to their resilience, particularly at the intersection of environmental and economic change and the consequences for food security. This paper presents an overview of the social–ecological vulnerabilities that drive food and nutrition insecurity in different SIDS contexts and considers how policies and governance arrangements might better support more resilient and sustainable small island food systems drawing from the collection of papers in this Special Issue.