Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 552 Scientists Citation Rankings - 2025

Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
Greece
John Strologas
Particle Physic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
278,902
94,991
0.341
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Greece
Ioannis Papadopoulos
Experimental Particle Physic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
244,734
92,762
0.379
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Greece
Ioanna Tzoulaki
Molecular epidemiology
Cardiovascular Epidemiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,184
26,604
0.616
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Greece
Evangelos Evangelou
Genetic Epidemiology
Molecular Epidemiology
Meta-analysis
Research Methodolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,103
25,204
0.645
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Greece
Di Fotiadis
Biomedical Engineering
Wearable Devices
Modelling of Biological Systems
Bioimaging
Bioinformatic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,326
17,206
0.532
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Greece
George Pentheroudakis
GI oncology
CUP
clinical trials
drug developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,911
13,803
0.554
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Greece
Athanassios Kyritsis
Neurology
Neuro-oncolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,276
5,794
0.260
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Greece
Konstantinos Kostas K Tsilidis
Cancer Epidemiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,260
16,008
0.719
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Greece
Bourlinos Thanos
chemistry of material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,863
7,679
0.368

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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Greece
Michail Kontominas
Food Chemistry
Food packaging
Food Analysis
Non thermal methods of Food Preservatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,993
6,903
0.363
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Greece
Sotiris Ntouyas
Differential Equations
Controllabilit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,437
8,274
0.449
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Greece
Evangelia Ntzani
Epidemiology
Research Synthesis
Meta-analysis
Genetics
Evidence-Based Medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,131
9,010
0.497
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Greece
Aristidis Likas
Artificial Intelligenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,783
8,471
0.476
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Greece
Haralampos Milionis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,424
7,588
0.435
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Greece
Dimitrios Tasis
graphene MoS2 heterostructured catalyst
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,157
4,024
0.235
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Greece
Theodore Fotsis
Angiogenesis
cancer
signalling
stem cells
dietary phenolic compound
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,895
1,558
0.092
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Greece
Nikos Mamoulis
Data Management
Data Mining
Spatial Database
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,735
4,564
0.273
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Greece
Dimitris Mavridis
biostatistics
meta-analysis
network meta-analysis
structural equation modeling
item response theor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,960
10,314
0.646
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Greece
Evangelos Liberopoulos
Medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,516
5,541
0.382
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Greece
Elefterios Lidorikis
Computational Materials Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,493
4,380
0.325
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Greece
Lampros Michalis
cardiovascula
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,927
5,524
0.427
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Greece
George Z Papageorgiou
Sustainable Industrial Chemistry and Chemical Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,867
7,154
0.556
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Greece
Konstantinos Kostikas
COPD
asthma
biomarkers
sleep apnea
non-invasive ventilatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,836
6,332
0.493
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Greece
Gournis Dimitrios
Chemistry of materials
Nanostructured materials
2D materials
Carbon nanostructures
hybrid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,161
4,834
0.398
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Greece
Konstantinos Parsopoulos
Computational Optimization
Evolutionary Computation
Computational Intelligenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,129
2,135
0.176
* Total Citation Counts Rankings
Rankings
327
Greece
8
1
Ranking Based On Selection: 1
John Strologas
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
278,902
94,991
0.341
* Total Citation Counts Rankings
Rankings
539
Greece
12
2
Ranking Based On Selection: 2
Ioannis Papadopoulos
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
244,734
92,762
0.379
* Total Citation Counts Rankings
Rankings
13,582
Greece
61
3
Ranking Based On Selection: 3
Ioanna Tzoulaki
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,184
26,604
0.616
* Total Citation Counts Rankings
Rankings
15,937
Greece
74
4
Ranking Based On Selection: 4
Evangelos Evangelou
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,103
25,204
0.645
Genetic Epidemiology
Molecular Epidemiology
Meta-analysis
Research Methodolog
* Total Citation Counts Rankings
Rankings
21,430
Greece
90
5
Ranking Based On Selection: 5
Di Fotiadis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,326
17,206
0.532
Biomedical Engineering
Wearable Devices
Modelling of Biological Systems
Bioimaging
Bioinformatic
* Total Citation Counts Rankings
Rankings
31,718
Greece
135
6
Ranking Based On Selection: 6
George Pentheroudakis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,911
13,803
0.554
* Total Citation Counts Rankings
Rankings
37,156
Greece
161
7
Ranking Based On Selection: 7
Athanassios Kyritsis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,276
5,794
0.260
* Total Citation Counts Rankings
Rankings
37,205
Greece
163
8
Ranking Based On Selection: 8
Konstantinos Kostas K Tsilidis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,260
16,008
0.719
* Total Citation Counts Rankings
Rankings
40,818
Greece
180
9
Ranking Based On Selection: 9
Bourlinos Thanos
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,863
7,679
0.368
* Total Citation Counts Rankings
Rankings
46,393
Greece
208
10
Ranking Based On Selection: 10
Michail Kontominas
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,993
6,903
0.363
Food Chemistry
Food packaging
Food Analysis
Non thermal methods of Food Preservatio

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total Citation Counts Rankings
Rankings
48,356
Greece
219
11
Ranking Based On Selection: 11
Sotiris Ntouyas
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,437
8,274
0.449
* Total Citation Counts Rankings
Rankings
49,414
Greece
225
12
Ranking Based On Selection: 12
Evangelia Ntzani
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,131
9,010
0.497
Epidemiology
Research Synthesis
Meta-analysis
Genetics
Evidence-Based Medicin
* Total Citation Counts Rankings
Rankings
50,758
Greece
234
13
Ranking Based On Selection: 13
Aristidis Likas
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,783
8,471
0.476
* Total Citation Counts Rankings
Rankings
52,174
Greece
243
14
Ranking Based On Selection: 14
Haralampos Milionis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,424
7,588
0.435
* Total Citation Counts Rankings
Rankings
53,210
Greece
247
15
Ranking Based On Selection: 15
Dimitrios Tasis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,157
4,024
0.235
* Total Citation Counts Rankings
Rankings
54,336
Greece
255
16
Ranking Based On Selection: 16
Theodore Fotsis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,895
1,558
0.092
Angiogenesis
cancer
signalling
stem cells
dietary phenolic compound
* Total Citation Counts Rankings
Rankings
55,045
Greece
259
17
Ranking Based On Selection: 17
Nikos Mamoulis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,735
4,564
0.273
* Total Citation Counts Rankings
Rankings
58,590
Greece
273
18
Ranking Based On Selection: 18
Dimitris Mavridis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,960
10,314
0.646
biostatistics
meta-analysis
network meta-analysis
structural equation modeling
item response theor
* Total Citation Counts Rankings
Rankings
66,454
Greece
321
19
Ranking Based On Selection: 19
Evangelos Liberopoulos
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,516
5,541
0.382
* Total Citation Counts Rankings
Rankings
72,930
Greece
355
20
Ranking Based On Selection: 20
Elefterios Lidorikis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,493
4,380
0.325
* Total Citation Counts Rankings
Rankings
76,949
Greece
383
21
Ranking Based On Selection: 21
Lampros Michalis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,927
5,524
0.427
* Total Citation Counts Rankings
Rankings
77,365
Greece
385
22
Ranking Based On Selection: 22
George Z Papageorgiou
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,867
7,154
0.556
Sustainable Industrial Chemistry and Chemical Engineerin
* Total Citation Counts Rankings
Rankings
77,590
Greece
386
23
Ranking Based On Selection: 23
Konstantinos Kostikas
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,836
6,332
0.493
COPD
asthma
biomarkers
sleep apnea
non-invasive ventilatio
* Total Citation Counts Rankings
Rankings
82,892
Greece
418
24
Ranking Based On Selection: 24
Gournis Dimitrios
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,161
4,834
0.398
Chemistry of materials
Nanostructured materials
2D materials
Carbon nanostructures
hybrid
* Total Citation Counts Rankings
Rankings
83,156
Greece
421
25
Ranking Based On Selection: 25
Konstantinos Parsopoulos
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,129
2,135
0.176
Computational Optimization
Evolutionary Computation
Computational Intelligenc