This study investigates the viewpoints of higher education managers, staff, lecturers and students on the impacts of accreditation in institutional quality management. These views are explored via a case study approach involving semi-structured interviews with key stakeholders at a leading university in Vietnam. The study's results suggest that accreditation influences most of the university's management activities, including programmes, teaching activities, lecturers, supporting staff, learners and facilities. We argue the influence of accreditation contributes significantly to enhancing the university's quality of teaching, learning, research and management. Recommendations for improvement in the use of accreditation results are proposed.