The term ‘Eurasia' is an ambiguous concept that includes in different studies: ‘Greater Eurasia', which is associated with the Eurasian continent; ‘Central Eurasia' as a post-Soviet space; and the term Eurasia can be associated with specific integration projects in Eurasia, such as Eurasian Economic Union. This chapter defines Eurasian regionalism and prospects for its development. Authors analyze modern scientific discourse around Eurasian integration and Eurasian regionalism. They examine modern approaches to regionalism and identify some of the distinctive features of the construction of regions.