This editorial introduces the special Biomed Central cross-journal collection The Many Meanings of 'Quality' in Healthcare: Interdisciplinary Perspectives, setting out the context for the development of the collection, and presenting brief summaries of all the included papers in three broad themes 1) the practices of assuring quality in healthcare 2) giving 'space to the story' 3) addressing moral complexity in the clinic, the classroom and the academy. The editorial concludes with reflections on some of the key messages that emerge from the papers which are relevant to policymakers and practitioners who seek to improve the quality of healthcare.