Greece's Top 2% Scientists 2021: Career-Long List

Greece has 829 scientists on the 2021 career-long Top 2% list, up 27.9% from 648 in 2020. That places Greece 28th in the world by number of listed scientists. Aristotle University of Thessaloniki has the most listed scientists (120), followed by National Technical University of Athens (95).

Single Year

846

+180 (+27.0%) vs 2020

Career Data

829

+181 (+27.9%) vs 2020

World rank by count

#28

No change vs 2020

Institutes

+8 (+9.1%) vs 2020

Scientists in Greece on the list, by year

The career-long count has grown 28% since 2020.

Career-long list, change on the previous year

2021+27.9%

2022+6.0%

2023+10.5%

2024+9.7%

2025+9.0%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	666		648
2021	846	+27.0%	829	+27.9%
2022	885	+4.6%	879	+6.0%
2023	926	+4.6%	971	+10.5%
2024	1,019	+10.0%	1,065	+9.7%
2025	1,074	+5.4%	1,161	+9.0%

Top 10 institutes in Greece

By number of listed scientists

Career-long list2021

Show the list

All 829 scientists

Career-long list2021

The first 100 are free to browse.

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Rank in Greece	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	239	CG Chrousos, George Panagiotis	National and Kapodistrian University of Athens	Endocrinology & Metabolism	Rank 10
2	3,759	RD Roukos, Dimitrios H.	Academy of Athens	Oncology & Carcinogenesis	Rank 172
3	3,795	TA Trichopoulou, Antonia	Hellenic Health Foundation, Athens	Oncology & Carcinogenesis	Rank 174
4	4,493	SC Stefanadis, Christodoulos	University of Athens Medical School	Cardiovascular System & Hematology	Rank 227
5	8,164	MH Moutsopoulos, Haralampos M.	Academy of Athens	Arthritis & Rheumatology	Rank 72
6	8,375	BC Biliaderis, Costas G.	Aristotle University of Thessaloniki	Food Science	Rank 22
7	8,568	HS Hadziyannis, Stephanos	National and Kapodistrian University of Athens	Gastroenterology & Hepatology	Rank 140
8	8,615	HN Hatziargyriou, Nikos	School of Electrical and Computer Engineering	Energy	Rank 75
9	9,746	BD Bikiaris, Dimitrios N.	Aristotle University of Thessaloniki	Polymers	Rank 81
10	10,535	MP Maragos, Petros	National Technical University of Athens	Artificial Intelligence & Image Processing	Rank 174
11	11,815	DE Diamanti-Kandarakis, Evanthia	Hygeia Hospital	Endocrinology & Metabolism	Rank 331
12	12,401	DY Dafalias, Yannis F.	National Technical University of Athens	Geological & Geomatics Engineering	Rank 34
13	12,476	GG Gazetas, George	National Technical University of Athens	Geological & Geomatics Engineering	Rank 35
14	13,221	KM Koukourakis, Michael I.	Democritus University of Thrace	Oncology & Carcinogenesis	Rank 595
15	14,231	KG Karagiannidis, George K.	Aristotle University of Thessaloniki	Networking & Telecommunications	Rank 104
16	14,823	GH Giamarellou, H.	Athens General Hospital	Microbiology	Rank 343
17	15,134	AI Arvanitoyannis, Ioannis S.	University of Thessaly	Food Science	Rank 40
18	15,367	PN Pavlidis, Nicholas	Panepistimion Ioanninon	Oncology & Carcinogenesis	Rank 702
19	15,762	TD Theodorou, Doros N.	National Technical University of Athens	Polymers	Rank 138
20	15,864	VI Vardoulakis, Ioannis	National Technical University of Athens	Geological & Geomatics Engineering	Rank 44
21	16,099	PI Pitas, Ioannis	Aristotle University of Thessaloniki	Artificial Intelligence & Image Processing	Rank 277
22	16,896	KD Koutsoyiannis, Demetris	National Technical University of Athens	Environmental Engineering	Rank 55
23	17,577	PM Papageorgiou, Markos	Technical University of Crete	Logistics & Transportation	Rank 15
24	17,853	PD Panagiotakos, Demosthenes	Harokopio University	Cardiovascular System & Hematology	Rank 790
25	18,326	EE Economou, Eleftherios N.	Foundation for Research and Technology-Hellas, Institute of Electronic Structure and Laser	Applied Physics	Rank 442
26	18,616	TT Triantafillou, T. C.	Panepistimion Patron	Civil Engineering	Rank 20
27	19,142	EM Elisaf, Moses	Panepistimion Ioanninon	Cardiovascular System & Hematology	Rank 843
28	21,481	RT Rassias, Themistocles M.	National Technical University of Athens	General Mathematics	Rank 63
29	22,446	LP Lianos, Panagiotis	Panepistimion Patron	Chemical Physics	Rank 545
30	22,548	VX Verykios, Xenophon	Panepistimion Patron	Physical Chemistry	Rank 82
31	22,734	TE Terpos, Evangelos	University of Athens Medical School	Immunology	Rank 803
32	23,263	SP Sfikakis, Petros P.	National and Kapodistrian University of Athens	Arthritis & Rheumatology	Rank 180
33	23,955	TD Tousoulis, Dimitris	National and Kapodistrian University of Athens	Cardiovascular System & Hematology	Rank 1,025
34	24,148	VP Varotsos, P. A.	National and Kapodistrian University of Athens	Applied Physics	Rank 587
35	24,491	SL Stefanis, Leonidas	National and Kapodistrian University of Athens School of Medicine -Eginition Hospital	Neurology & Neurosurgery	Rank 1,926
36	25,387	BT Boulikas, Teni	Regulon Inc. (USA)	Oncology & Carcinogenesis	Rank 1,167
37	25,647	DM Dimopoulos, Meletios Athanasios	University of Athens Medical School	Oncology & Carcinogenesis	Rank 1,180
38	25,654	KJ Kaldellis, John K.	University of West Attica	Energy	Rank 242
39	26,126	BD Boumpas, Dimitrios T.	Academy of Athens	Arthritis & Rheumatology	Rank 196
40	26,930	SC Synolakis, Costas	Academy of Athens	Geochemistry & Geophysics	Rank 440
41	27,071	KE Kiritsis, E.	University of Crete	Nuclear & Particle Physics	Rank 435
42	27,286	PC Panayiotou, Costas	Aristotle University of Thessaloniki	Polymers	Rank 249
43	27,656	LS Logothetidis, S.	Aristotle University of Thessaloniki	Applied Physics	Rank 672
44	27,664	EA Efstratiadis, Argiris	Academy of Athens	Developmental Biology	Rank 1,144
45	27,679	SM Sigalas, Mihail M.	Panepistimion Patron	Applied Physics	Rank 673
46	28,098	GI Galanakis, I.	Panepistimion Patron	Applied Physics	Rank 692
47	28,200	AD Achlioptas, Dimitris	National and Kapodistrian University of Athens	Computation Theory & Mathematics	Rank 84
48	28,413	BD Beskos, Dimitri E.	Panepistimion Patron	Applied Mathematics	Rank 61
49	28,751	RC Roussos, Charis	National and Kapodistrian University of Athens	Respiratory System	Rank 297
50	29,083	SD Spandidos, Demetrios A.	University of Crete Medical School	Oncology & Carcinogenesis	Rank 1,333
51	29,370	RC Rakopoulos, Constantine D.	School of Mechanical Engineering	Energy	Rank 286
52	29,570	TN Tavernarakis, Nektarios	University of Crete Medical School	Developmental Biology	Rank 1,203
53	30,375	VP Vardas, Panos E.	Hygeia Hospital	Cardiovascular System & Hematology	Rank 1,244
54	30,651	PA Papavassiliou, Athanasios G.	National and Kapodistrian University of Athens	Oncology & Carcinogenesis	Rank 1,413
55	30,754	VC Varotsos, Costas	National and Kapodistrian University of Athens	Meteorology & Atmospheric Sciences	Rank 423
56	31,486	PG Papatheodoridis, George	National and Kapodistrian University of Athens	Gastroenterology & Hepatology	Rank 486
57	31,572	KG Kollias, Georg	Biomedical Sciences Research Center - Alexander Fleming	Immunology	Rank 1,059
58	33,564	DL De La Torre, Rafael	National and Kapodistrian University of Athens	Pharmacology & Pharmacy	Rank 297
59	33,753	VC Vlachopoulos, Charalambos	University of Athens Medical School	Cardiovascular System & Hematology	Rank 1,362
60	34,156	MG Maroulis, George	Panepistimion Patron	Chemical Physics	Rank 779
61	36,298	GA Giatromanolaki, Alexandra	Democritus University of Thrace	Oncology & Carcinogenesis	Rank 1,632
62	36,366	CG Chryssolouris, George	Panepistimion Patron	Industrial Engineering & Automation	Rank 275
63	36,971	AS Avrameas, Stratis	Institute Pasteur Hellenique	Immunology	Rank 1,199
64	37,348	BL Bokobza, Liliane	National Technical University of Athens	Polymers	Rank 348
65	37,695	SC Stalikas, Constantine D.	Panepistimion Ioanninon	Analytical Chemistry	Rank 256
66	38,230	DL Duntas, L. H.	National and Kapodistrian University of Athens	Endocrinology & Metabolism	Rank 907
67	38,887	TB Tarlatzis, Basil C.	Aristotle University of Thessaloniki	Obstetrics & Reproductive Medicine	Rank 344
68	38,931	Galanakis, Charis M.	Galanakis Laboratories	Food Science	Rank 130
69	39,101	RE Roilides, Emmanuel	Aristotle University of Thessaloniki	Microbiology	Rank 966
70	39,225	FM Fountoulakis, Michael	Academy of Athens	Biochemistry & Molecular Biology	Rank 1,740
71	39,408	GA Giannakopoulos, Antonios E.	National Technical University of Athens	Mechanical Engineering & Transports	Rank 221
72	39,557	GV Georgoulias, Vassilios	Heraklion University Hospital	Oncology & Carcinogenesis	Rank 1,763
73	40,008	MD Mantzavinos, Dionissios	Panepistimion Patron	Physical Chemistry	Rank 141
74	40,018	KE Kamitsos, E. I.	Theoretical and Physical Chemistry	Applied Physics	Rank 1,008
75	40,161	MJ Mikroyannidis, J. A.	Panepistimion Patron	Polymers	Rank 377
76	40,986	Kyzas, George Z.	International Hellenic University	Chemical Physics	Rank 933
77	41,964	ZA Zouboulis, Anastasios	Aristotle University of Thessaloniki	Chemical Engineering	Rank 146
78	42,053	EA Economou, Anastasios	National and Kapodistrian University of Athens	Analytical Chemistry	Rank 284
79	42,233	CL Christophorou, Loucas G.	Academy of Athens	Chemical Physics	Rank 956
80	42,284	FG Froudakis, George	University of Crete	Chemical Physics	Rank 957
81	42,718	DA Drosos, Alexandros A.	University of Ioannina, School of Medicine	Arthritis & Rheumatology	Rank 301
82	42,823	KK Koutsoumanis, Konstantinos	Aristotle University of Thessaloniki	Food Science	Rank 153
83	43,145	KA Karabelas, Anastasios J.	Center For Research And Technology - Hellas	Chemical Engineering	Rank 149
84	43,361	KC Kiparissides, Costas	Aristotle University of Thessaloniki	Chemical Engineering	Rank 151
85	43,801	PM Papadrakakis, Manolis	National Technical University of Athens	Applied Mathematics	Rank 94
86	44,531	AT Albanis, Triantafyllos A.	Panepistimion Ioanninon	Environmental Sciences	Rank 220
87	45,146	BD Bouros, Demosthenes	National and Kapodistrian University of Athens	Respiratory System	Rank 470
88	45,182	OC Ouzounis, Christos A.	Center For Research And Technology - Hellas	Bioinformatics	Rank 105
89	45,790	GE Giamarellos-Bourboulis, Evangelos J.	University of Athens Medical School	Microbiology	Rank 1,126
90	45,876	KM Karlaftis, Matthew G.	National Technical University of Athens	Logistics & Transportation	Rank 41
91	46,217	ND Nanopoulos, Dimitri V.	Academy of Athens	Nuclear & Particle Physics	Rank 782
92	46,931	BA Bakirtzis, A. G.	Aristotle University of Thessaloniki	Energy	Rank 494
93	47,245	ZE Zouros, Eleftherios	University of Crete	Evolutionary Biology	Rank 461
94	47,434	LP Lambropoulos, P.	University of Crete	General Physics	Rank 335
95	47,585	SG Stergiou, George S.	National and Kapodistrian University of Athens	Cardiovascular System & Hematology	Rank 1,795
96	48,079	KD Kremastinos, Dimitrios	National and Kapodistrian University of Athens	Cardiovascular System & Hematology	Rank 1,817
97	48,479	GV Georgakilas, Vasilios	Panepistimion Patron	Nanoscience & Nanotechnology	Rank 422
98	48,517	SD Spinellis, Diomidis	Athens University of Economics and Business	Software Engineering	Rank 89
99	48,567	SN Siafakas, Nikolaos	Heraklion University Hospital	Respiratory System	Rank 501
100	48,782	KD Katritsis, Demosthenes G.	Hygeia Hospital	Cardiovascular System & Hematology	Rank 1,843
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You are seeing the first 100. 729 more are on the 2021 career-long list.

Ranks 101 to 829The whole list, not only the top 100.

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Countries with a similar count

Career-long list2021

Poland957 scientistsin 2021

Singapore876 scientistsin 2021

Russia847 scientistsin 2021

Turkey828 scientistsin 2021

Brazil812 scientistsin 2021

South Africa669 scientistsin 2021

Explore other countries

Career-long list2021

Italy4,956 scientistsin 2021

Spain2,813 scientistsin 2021

Portugal481 scientistsin 2021

Slovenia147 scientistsin 2021

Serbia69 scientistsin 2021

Croatia60 scientistsin 2021

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Frequently asked questions

How many scientists from Greece are in the 2021 Stanford Top 2% list?

846 scientists affiliated with Greece are on the 2021 single-year list, and 829 are on the career-long list.

Which institute in Greece has the most Top 2% scientists?

On the 2021 career-long list, Aristotle University of Thessaloniki has the most listed scientists from Greece, with 120. It is followed by National Technical University of Athens with 95.

How has the number of Top 2% scientists in Greece changed since 2020?

On the career-long list, Greece went from 648 scientists in 2020 to 829 in 2021, a change of +27.9%.

What is the difference between the single-year and career-long lists?

The single-year list ranks scientists on the citations their work received in one year. The career-long list ranks them on citations across their whole career. Both lists are published every year, and a scientist can be on one, both or neither.

What is the official source of this data?

The rankings come from the science-wide author databases of standardized citation indicators published by Ioannidis et al. in the Elsevier Data Repository, updated every year. TOPSCINET, an independent platform, organises that data by country, year, institute and field, so you can compare and explore it.