A mesoregion is a medium-sized region between the size of a city or district and that of a nation. Examples of conceptual meso-regions in Southeast Europe include Istria, Kosovo, Epirus, etc. An example of the official usage of the term is Mesoregion (Brazil), a grouping of municipalities for statistical purposes.
- Klaus Roth; Ulf Brunnbauer (1 October 2009). Region, Regional Identity and Regionalism in Southeastern Europe. LIT Verlag Münster. pp. 19–. ISBN 978-3-8258-1387-1.