Universities by Research Publications in Bulgaria
Universities and colleges ranked by the number of scholarly works indexed by OpenAlex. This measures research volume, not teaching quality. OpenAlex is an open scholarly index; larger and older institutions tend to have more indexed research.
1Sofia University "St. Kliment Ohridski"1,519,223 citations
32,818
2Medical University of Sofia517,014 citations
12,979
3Technical University of Sofia107,211 citations
12,515
4Medical University of Varna103,558 citations
7,909
5Medical University Plovdiv162,860 citations
6,972
6Plovdiv University121,684 citations
6,898
7Trakia University83,236 citations
5,722
8Angel Kanchev University of Ruse41,427 citations
4,548
9University of Chemical Technology and Metallurgy94,045 citations
3,969
10University of National and World Economy12,070 citations
3,502
11South-West University "Neofit Rilski"23,060 citations
2,888
12Medical University Pleven32,511 citations
2,821
13Technical University of Varna18,281 citations
2,665
14University of Forestry28,889 citations
2,449
15New Bulgarian University31,811 citations
2,371
16University of Food Technologies60,713 citations
2,281
17Shumen University19,147 citations
2,230
18Agricultural University Plovdiv23,762 citations
2,008
19Prof. Assen Zlatarov University54,622 citations
2,007
20University of Architecture, Civil Engineering and Geodesy18,112 citations
1,881
21University of Economics Varna4,750 citations
1,637
22St. Cyril and St. Methodius University of Veliko Tarnovo6,100 citations
1,561
23Technical University of Gabrovo14,086 citations
1,329
24Vasil Levski National Military University4,831 citations
1,282
25National Center of Infectious and Parasitic Diseases47,613 citations
1,153
26University of Mining and Geology "Saint Ivan Rilski"10,874 citations
1,060
27G. S. Rakovski National Defence College1,527 citations
1,037
28University of Library Studies and Information Technologies4,765 citations
1,029
29National Sports Academy Vassil Levski3,393 citations
1,028
30D. A. Tsenov Academy of Economics3,305 citations
750
31Nikola Vaptsarov Naval Academy5,008 citations
737
32American University in Bulgaria5,965 citations
699
33University of Agribusiness and Rural Development1,772 citations
672
34Burgas Free University2,516 citations
643
35Todor Kableshkov University of Transport2,298 citations
574
36Institute for Bulgarian Language614 citations
560
37Varna Free University1,886 citations
472
38University of Telecommunications and Post2,981 citations
407
39Varna University of Management15,804 citations
401
40Institute of Mineralogy and Crystallography "Acad. Ivan Kostov" Bulgarian Academy of Sciences4,076 citations
328
41Big Data for Smart Society (GATE) Institute2,226 citations
221
42University of Finance, Business and Entrepreneurship427 citations
176
43National Academy for Theatre and Film Arts5 citations
167
44Plant Protection Institute3,443 citations
161
45University of Security and Economics814 citations
156
46College of Tourism103 citations
139
47University of Structural Engineering and Architecture Lyuben Karavelov434 citations
139
48Bulgarian Air Force Academy629 citations
127
49International Business School1,069 citations
89
50Academy of Music, Dance and Fine Arts64 citations
88
Highlights
Within Bulgaria, Sofia University "St. Kliment Ohridski" ranks first in 2026 with 32,818, followed by Medical University of Sofia (12,979) and Technical University of Sofia (12,515).
Sofia University "St. Kliment Ohridski" is 2.5 times higher than Medical University of Sofia, the runner-up.
Across 50 entries, values run from 32,818 (Sofia University "St. Kliment Ohridski") to 88 (Academy of Music, Dance and Fine Arts), with a median of 1,107.
Source: OpenAlex, institutional Publications, 2026. Unit: works.
All