Greece's Top 2% Scientists 2025: Career-Long List

Greece has 1,161 scientists on the 2025 career-long Top 2% list, up 9.0% from 1,065 in 2024. That places Greece 29th in the world by number of listed scientists, down 1 place. Aristotle University of Thessaloniki has the most listed scientists (154), followed by National Technical University of Athens (NTUA) (114).

Single Year

1,074

+55 (+5.4%) vs 2024

Career Data

1,161

+96 (+9.0%) vs 2024

World rank by count

#29

down 1 place vs 2024

Institutes

142

+36 (+34.0%) vs 2024

Scientists in Greece on the list, by year

The career-long count has grown 79% 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 list2025

Show the list

1Aristotle University of Thessaloniki154
2National Technical University of Athens (NTUA)114
3National and Kapodistrian University of Athens110
4University of Patras103
5University of Thessaly52
6University of Ioannina47
7School of Medicine40
8Technical University of Crete31
9University of Crete31
10Democritus University of Thrace28

All 1,161 scientists

Career-long list2025

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	242	CG Chrousos, George Panagiotis	School of Medicine	Endocrinology & Metabolism	Rank 9
2	816	DM Dalakas, Marinos C.	National and Kapodistrian University of Athens	Neurology & Neurosurgery	Rank 82
3	3,234	TA Trichopoulou, Antonia	Academy of Athens	Oncology & Carcinogenesis	Rank 133
4	5,222	HN Hatziargyriou, Nikos	National Technical University of Athens (NTUA)	Energy	Rank 60
5	5,723	RD Roukos, Dimitrios H.	University of Ioannina	Oncology & Carcinogenesis	Rank 251
6	5,753	AN Apergis, Nicholas	University of Piraeus	Economics	Rank 56
7	6,569	SC Stefanadis, Christodoulos I.	National and Kapodistrian University of Athens	Cardiovascular System & Hematology	Rank 317
8	6,911	KS Konstantinides, Stavros V.	Democritus University of Thrace	Cardiovascular System & Hematology	Rank 331
9	7,076	BD Bikiaris, Dimitrios N.	Aristotle University of Thessaloniki	Polymers	Rank 56
10	8,214	BC Biliaderis, Costas G.	School of Agriculture	Food Science	Rank 30
11	8,838	MH Moutsopoulos, Haralampos M.	Academy of Athens	Arthritis & Rheumatology	Rank 83
12	9,003	AE Aifantis, Elias C.	Aristotle University of Thessaloniki	Mechanical Engineering & Transports	Rank 62
13	9,200	FA Fokas, Athanassios S.	Academy of Athens	Mathematical Physics	Rank 7
14	9,841	GG Gazetas, George C.	National Technical University of Athens (NTUA)	Geological & Geomatics Engineering	Rank 33
15	10,434	DE Diamanti-Kandarakis, Evanthia	Hygeia Hospital	Endocrinology & Metabolism	Rank 294
16	10,525	DY Dafalias, Yannis F.	National Technical University of Athens (NTUA)	Geological & Geomatics Engineering	Rank 38
17	11,613	KG Karagiannidis, George K.	Aristotle University of Thessaloniki	Networking & Telecommunications	Rank 95
18	11,912	MP Maragos, Petros A.	National Technical University of Athens (NTUA)	Artificial Intelligence & Image Processing	Rank 253
19	11,970	HS Hadziyannis, Stephanos J.	School of Medicine	Gastroenterology & Hepatology	Rank 209
20	12,982	DM Dimopoulos, Meletios Athanasios	School of Medicine	Immunology	Rank 463
21	13,102	PD Panagiotakos, Demosthenes B.	Harokopio University of Athens	Cardiovascular System & Hematology	Rank 596
22	13,346	KD Koutsoyiannis, Demetris	National Technical University of Athens (NTUA)	Environmental Engineering	Rank 43
23	13,536	AI Arvanitoyannis, Ioannis Sotirios	University of Thessaly	Food Science	Rank 57
24	14,454	KM Koukourakis, Michael Ioannis	Democritus University of Thrace	Oncology & Carcinogenesis	Rank 630
25	14,519	GH Giamarellou, Helen	Hygeia Hospital	Microbiology	Rank 347
26	14,726	SE Saridakis, Emmanuel N.	National Observatory of Athens	Nuclear & Particle Physics	Rank 199
27	15,521	PM Papageorgiou, Markos	Technical University of Crete	Logistics & Transportation	Rank 17
28	15,583	TD Tousoulis, Dimitrios M.	School of Medicine	Cardiovascular System & Hematology	Rank 702
29	16,052	TT Triantafillou, Thanasis C.	University of Patras	Civil Engineering	Rank 24
30	16,425	PN Pavlidis, Nicholas A.	University of Ioannina	Oncology & Carcinogenesis	Rank 717
31	17,103	PS Papapoulos, Socrates E.	Athens General Hospital	Endocrinology & Metabolism	Rank 454
32	17,299	TE Terpos, Evangelos	School of Medicine	Immunology	Rank 606
33	17,895	PI Pitas, Ioannis Csd Auth Gr	Aristotle University of Thessaloniki	Artificial Intelligence & Image Processing	Rank 385
34	18,161	TD Theodorou, Doros N.	National Technical University of Athens (NTUA)	Polymers	Rank 145
35	18,597	VI Vardoulakis, Ioannis G.	National Technical University of Athens (NTUA)	Geological & Geomatics Engineering	Rank 78
36	19,548	SL Stefanis, Leonidas	Academy of Athens	Neurology & Neurosurgery	Rank 1,508
37	19,556	Kyzas, George Z.	Democritus University of Thrace	Chemical Physics	Rank 446
38	19,744	MD Mourtzis, Dimitris	University of Patras	Industrial Engineering & Automation	Rank 137
39	19,779	EM Elisaf, Moses S.	University General Hospital of Ioannina	Cardiovascular System & Hematology	Rank 848
40	20,617	EE Economou, Eleftherios N.	Institute of Electronic Structure and Laser of the Foundation for Research and Technology-Hellas	Applied Physics	Rank 486
41	21,151	GE GIamarellos-Bourboulis, Evangelos J.	Hellenic Institute for the Study of Sepsis	Microbiology	Rank 525
42	22,279	SP SFIKAKIS, P. Paul P.	School of Medicine	Arthritis & Rheumatology	Rank 179
43	22,524	TN Tavernarakis, Nektarios	Institute of Molecular Biology and Biotechnology of the Foundation for Research and Technology Hellas	Developmental Biology	Rank 855
44	22,545	RT Rassias, Th Michael	National Technical University of Athens (NTUA)	General Mathematics	Rank 76
45	23,065	KK Katsouyanni, K. M.	National and Kapodistrian University of Athens	Epidemiology	Rank 74
46	23,205	LP Lianos, Panagiotis	University of Patras	Chemical Physics	Rank 511
47	24,044	KJ Kaldellis, J. K.	University of West Attica	Energy	Rank 277
48	26,212	MA Matzarakis, A. P.	Democritus University of Thrace	Meteorology & Atmospheric Sciences	Rank 359
49	26,365	PG Papatheodoridis, George V.	National & Kapodistrian University of Athens, School of Health Sciences	Gastroenterology & Hepatology	Rank 404
50	26,593	Kotsiantis, Sotiris	University of Patras	Artificial Intelligence & Image Processing	Rank 574
51	26,794	BE Bellos, Evangelos	University of West Attica	Energy	Rank 319
52	26,882	VX Verykios, Xenophon E.	University of Patras	Physical Chemistry	Rank 90
53	26,946	KG Kollias, George	Biomedical Sciences Research Center Alexander Fleming	Immunology	Rank 878
54	27,978	GR Gutell, Robin Ray	Hellenic Pasteur Institute	Developmental Biology	Rank 1,028
55	28,069	VP Varotsos, Panayiotis Antoniou	National and Kapodistrian University of Athens	Applied Physics	Rank 668
56	28,321	PC Panayiotou, Costas G.	Aristotle University of Thessaloniki	Chemical Engineering	Rank 113
57	28,447	GI Galanakis, Iosif	University of Patras	Applied Physics	Rank 679
58	28,533	PA Papavassiliou, Athanasios G.	School of Medicine	Oncology & Carcinogenesis	Rank 1,263
59	28,884	LS Logothetidis, Stergios D.	Organic Electronic Technologies P.C. (OET)	Applied Physics	Rank 691
60	28,915	AV Agelidis, Vassilios G.	Democritus University of Thrace	Electrical & Electronic Engineering	Rank 69
61	29,649	SD Spandidos, Demetrios A.	University of Crete Medical School	Oncology & Carcinogenesis	Rank 1,310
62	29,861	AD Achlioptas, Dimitris	National and Kapodistrian University of Athens	Computation Theory & Mathematics	Rank 80
63	30,190	ZE Zintzaras, Elias Α.	University of Thessaly	Genetics & Heredity	Rank 164
64	30,347	VC Vlachopoulos, Charalambos V.	National and Kapodistrian University of Athens	Cardiovascular System & Hematology	Rank 1,226
65	30,682	DL Duntas, Leonidas H.	National and Kapodistrian University of Athens	Endocrinology & Metabolism	Rank 725
66	30,944	ZT Zaoutis, Theoklis E.	National and Kapodistrian University of Athens	Pediatrics	Rank 137
67	30,946	VP Vardas, Panos E.	Biomedical Research Foundation Academy of Athens	Cardiovascular System & Hematology	Rank 1,249
68	31,066	KK Koutsoumanis, Konstantinos Panagiotis	School of Agriculture	Food Science	Rank 134
69	31,158	AP Asteris, Panagiotis G.	School of Pedagogical and Technological Education	Civil Engineering	Rank 55
70	31,998	OV Oikonomou, V. K.	Aristotle University of Thessaloniki	Nuclear & Particle Physics	Rank 460
71	32,540	RE Roilides, Emmanuel J.	Aristotle University of Thessaloniki	Microbiology	Rank 835
72	32,683	SC Synolakis, Costas Emmanuel	Academy of Athens	Geochemistry & Geophysics	Rank 550
73	32,802	SN Scarmeas, Nikolaos	National and Kapodistrian University of Athens	Neurology & Neurosurgery	Rank 2,370
74	32,824	VC Varotsos, Costas	National and Kapodistrian University of Athens	Meteorology & Atmospheric Sciences	Rank 480
75	32,901	CG Chryssolouris, George	University of Patras	Industrial Engineering & Automation	Rank 265
76	33,103	RC Rakopoulos, Constantine D.	School of Mechanical Engineering - NTUA	Energy	Rank 409
77	34,113	Damalas, Christos A.	Democritus University of Thrace	Agronomy & Agriculture	Rank 149
78	34,798	ZA Zabaniotou, Anastasia A.	Aristotle University of Thessaloniki	Energy	Rank 434
79	35,093	TA Tsatsakis, Aristides M.	University of Crete Medical School	Toxicology	Rank 135
80	35,143	SM Sigalas, Michael M.	University of Patras	Applied Physics	Rank 843
81	35,804	SG Stergiou, George S.	School of Medicine	Cardiovascular System & Hematology	Rank 1,412
82	36,590	AS Aubry, Serge	University of Crete	Fluids & Plasmas	Rank 291
83	37,016	MH Maltezou, Helen C.	Hellenic Centre for Disease Control and Prevention	Microbiology	Rank 934
84	37,271	SC Stalikas, Constantine D.	University of Ioannina	Analytical Chemistry	Rank 234
85	37,331	EA Efstratiadis, Argiris	Academy of Athens	Developmental Biology	Rank 1,295
86	37,456	KS Katsanevakis, Stelios	University of the Aegean	Marine Biology & Hydrobiology	Rank 269
87	37,825	Kamitsos, Efstratios I.	National Hellenic Research Foundation	Applied Physics	Rank 918
88	39,425	TS Theodoridis, Sergios	National and Kapodistrian University of Athens	Networking & Telecommunications	Rank 329
89	39,612	PE Papageorgiou, Elpiniki I.	University of Thessaly	Artificial Intelligence & Image Processing	Rank 869
90	40,173	TB Tarlatzis, Basil C.	Aristotle University of Thessaloniki	Obstetrics & Reproductive Medicine	Rank 347
91	40,189	KA Karabelas, Anastasios J.	Centre for Research and Technology-Hellas	Chemical Engineering	Rank 161
92	40,418	GA Giatromanolaki, Alexandra N.	Democritus University of Thrace	Oncology & Carcinogenesis	Rank 1,757
93	40,438	BD BOUROS, D.	National and Kapodistrian University of Athens	Respiratory System	Rank 392
94	40,619	ZA Zouboulis, Anastasios I.	Aristotle University of Thessaloniki	Chemical Engineering	Rank 162
95	40,912	MD Mantzavinos, Dionissios	University of Patras	Physical Chemistry	Rank 136
96	41,448	SD Spinellis, Diomidis D.	Athens University of Economics and Business	Software Engineering	Rank 72
97	41,804	AD Achilias, Dimitris S.	Aristotle University of Thessaloniki	Polymers	Rank 365
98	42,398	SC Stoumpos, Constantinos C.	University of Crete	Nanoscience & Nanotechnology	Rank 531
99	42,687	KM Karlaftis, Matthew G.	National Technical University of Athens (NTUA)	Logistics & Transportation	Rank 49
100	43,632	DC Dordas, Christos A.	School of Agriculture	Agronomy & Agriculture	Rank 202
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Countries with a similar count

Career-long list2025

Iran1,201 scientists

Brazil1,195 scientists

New Zealand1,167 scientists

Singapore1,090 scientists

Russia1,069 scientists

South Africa896 scientists

Explore other countries

Career-long list2025

Italy6,839 scientists

Spain3,816 scientists

Portugal711 scientists

Slovenia217 scientists

Serbia115 scientists

Croatia96 scientists

All countries on the world map

Frequently asked questions

How many scientists from Greece are in the 2025 Stanford Top 2% list?

1,074 scientists affiliated with Greece are on the 2025 single-year list, and 1,161 are on the career-long list.

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

On the 2025 career-long list, Aristotle University of Thessaloniki has the most listed scientists from Greece, with 154. It is followed by National Technical University of Athens (NTUA) with 114.

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 1,161 in 2025, a change of +79.2%.

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.