Increasing attention devoted to internationalisation and quality assurance of higher education reinforced the need to analyse their interdependent relationship, known as quality assurance of internationalisation and internationalisation of quality assurance in higher education. On this basis, the present article exposes the development and implementation of different initiatives for assessing and measuring the quality of internationalisation and for internationalising external and internal quality assurance systems in European higher education. Its specific focus is on Slovenian and Dutch experiences in this field, which are also comparatively analysed. Various documentary sources are supported with findings from semi-structured interviews, which were conducted as part of the PhD research on this theme. By focusing on supranational, national and institutional level of higher education, the article acknowledges the limits of comparative studies that rely exclusively on the national dimension as the main methodological unit of analysis. The results of research indicate that if quality is understood as 'value for money' [Harvey and Green 1993. 'Defining Quality.' "Assessment & Evaluation in Higher Education" 18 (1): 9-34] and/or internationalisation driven predominantly by economic rationales, then the quality of higher education (systems and institutions) cannot be assured or improved by internationalisation, neither in Slovenia and the Netherlands nor in any other country.