The University of Belgrade promotes the establishment, fostering and development of cooperation with other universities within the country and abroad, and with international organizations dealing with the field of higher education. This is clearly shown by the bilateral cooperation agreements that have been concluded with 56 universities on almost all continents, membership in the European Conference of Rectors (CRE), the International Association of Universities (AIU), the Balkan Conference of Rectors, the Rectors' Conference of the Danube Basin Countries, the Mediterranean Community of Universities, the Education Commission of the European Council, UNESCO and others.
The University also maintains contacts with a large number of rectors' conferences in individual countries, with academic associations and teacher and student exchange associations.
Among the bilateral relations with other universities, special emphasis goes to the University's cooperation with the Moscow state university "N.V. Lomonosov" and with universities in Greece.
As of 1989, a special form of cooperation has been established with the University of Illinois in Chicago.
For a period of one month during its summer specialization program, the University of Illinois receives the best students from the University of Belgrade from a variety of fields. On this basis, 10-15 students with a grade point average between 9 and 10 (on a 10-point scale) and requisite knowledge of the English language visit Chicago every year.
The University of Belgrade also has the "Sasakawa Fund", formed from resources donated to the University in 1988 by the Japanese foundation of the same name. These funds are intended for stipends to postgraduate students at the faculties of social science who show above-average abilities not only within the educational process but also as creative individuals. Using these grants, a dozen young people have received material support to carry out their projects within the country and abroad.
Around 500 foreign students are presently studying at the University of Belgrade's faculties. The greatest number are at the Faculty of Medicine (about 150) and at the Faculty of Stomatology (about 100 students).