Abstract
Implementation science is a diverse and evolving field that draws on multiple epistemologies and methods. However, the dominant foundations of implementation science remain settler colonial, biomedical, and positivist. In Indigenous and other marginalised settings, these foundations can result in poor epistemological, ethical, and practical fit. We argue that a paradigm shift that is grounded in Indigenous values, sovereignty, relationality, and epistemologies is needed. We propose seven guiding principles for a decolonising implementation science. Drawing from emerging scholarship and innovative Indigenous-led frameworks from the USA, Aotearoa New Zealand, and Australia, these principles centre sovereignty, strengths-based approaches, and relational accountability. These principles also offer a roadmap to redefine rigour, expand what counts as evidence, and ensure genuine community control over the research process. Although born from Indigenous experience, these principles provide a framework for transforming implementation science to be more just, equitable, and effective for marginalised communities globally.