US higher education accreditation agencies provide external quality evaluation for institutions and programmes to deliver quality control and assurance. Although there is ample discussion about the benefits and drawbacks of the accreditation process, this article reviews the academic literature to consider the impact that accreditation might have on the academic freedom of the teaching staff. Specifically, this article centres on how standardisation, assessments and the fundamental elements of accreditation affect academic freedom in higher education and how these might dilute academic freedom.