Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,864 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :2
Greg Fegan
Clinical Trials
Public Health
Global Health
Infectious Diseases
Metrics
H-Index
i10 Index
Citation
58
119
10,775
* Rankings
Ranking Based On Selection :3
Julian Halcox
Atherosclerosis
Endothelium
Heart Disease Prevention
Metrics
H-Index
i10 Index
Citation
56
118
37,181
* Rankings
Ranking Based On Selection :4
Iain S Whitaker
Plastic Surgery
Tissue Engineering
Reconstructive Surgery
3D Printing
Metrics
H-Index
i10 Index
Citation
53
162
10,449
* Rankings
Ranking Based On Selection :5
Mark Cross
numerical methods
mathematical model
computational model
high performance computing
dental materials
Metrics
H-Index
i10 Index
Citation
53
167
10,217
* Rankings
Ranking Based On Selection :10
Martin Hyde
Ageing
health inequalities
retirement
work environment
Metrics
H-Index
i10 Index
Citation
37
65
7,169
* Rankings
Ranking Based On Selection :11
Owain W Howell
neurobiology
neuroinflammation
multiple sclerosis
Metrics
H-Index
i10 Index
Citation
36
52
11,230
* Rankings
Ranking Based On Selection :14
Mark Atkinson
Health informatics
Bioclimatology
Plant ecology
Metrics
H-Index
i10 Index
Citation
33
49
5,681
* Rankings
Ranking Based On Selection :16
Charles Musselwhite
gerontology
transport and health
road safety
older drivers
traffic and transport psychology
Metrics
H-Index
i10 Index
Citation
32
63
3,626
* Rankings
Ranking Based On Selection :17
David Hughes
purchaser/provider reforms
universal healthcare coverage
rationing
medical sociology
Metrics
H-Index
i10 Index
Citation
31
52
3,352
* Rankings
Ranking Based On Selection :19
Adam Pockett
Perovskite Solar Cells
Dye-Sensitized Solar Cells
Solar Cell Characterization
Metrics
H-Index
i10 Index
Citation
23
30
2,362
* Rankings
Ranking Based On Selection :21
William L Allen
Animal Coloration
Antipredator Adaptations
Comparative Evolutionary Ecology
Life History Evolution
Metrics
H-Index
i10 Index
Citation
22
24
4,478
* Rankings
Ranking Based On Selection :22
Hayley Young
Nutrition
Sustainable diets
Interoception
Mood and Cognition
Heart rate variability
Metrics
H-Index
i10 Index
Citation
22
32
1,858
* Rankings
Ranking Based On Selection :23
Sherrill Snelgrove
Chronic pain
health and illness beliefs
psychological and social methods
Metrics
H-Index
i10 Index
Citation
22
34
6,769
* Rankings
Ranking Based On Selection :24
WO Pickrell
neurology
epilepsy
genetics
epidemiology
Metrics
H-Index
i10 Index
Citation
21
34
2,003
* Rankings
Ranking Based On Selection :27
Laith Al Rubaiy
Gastroenterology and Heaptology and quality of life
Metrics
H-Index
i10 Index
Citation
20
29
1,486
* Rankings
Ranking Based On Selection :30
RP Hugtenburg
radiotherapy physics
dosimetry
microdosimetry
Monte Carlo radiation transport
Metrics
H-Index
i10 Index
Citation
19
30
1,385
* Rankings
Ranking Based On Selection :34
Hamish Laing
plastic surgery
healthcare management
value-based healthcare
Metrics
H-Index
i10 Index
Citation
16
23
1,119
* Rankings
Ranking Based On Selection :40
Claire Hanley
ageing
plasticity
brain stimulation
neuroimaging
psychophysics
Metrics
H-Index
i10 Index
Citation
13
18
968
* Rankings
Ranking Based On Selection :41
Nigel Francis
Immunology Education
Authentic Assessment
Feedback
Groupwork
Metrics
H-Index
i10 Index
Citation
10
10
802
Huri Ozturk
Nursing
Hospital Infections
Antimicrobial Resistance
Antimicrobial Use
Metrics
H-Index
i10 Index
Citation
4
2
67
Alexander C Reynolds
Cardiac surgery
applied immunology
mechanical circulation
cardiac embryology
Metrics
H-Index
i10 Index
Citation
2
2
58
Rankings
Ranking Based On Selection: 1
John Wagstaff
Metrics
H-Index
i10 Index
Citation Counts
62
156
43,239
Rankings
Ranking Based On Selection: 2
Greg Fegan
Metrics
H-Index
i10 Index
Citation Counts
58
119
10,775
Clinical Trials
Public Health
Global Health
Infectious Diseases
Rankings
Ranking Based On Selection: 3
Julian Halcox
Metrics
H-Index
i10 Index
Citation Counts
56
118
37,181
Atherosclerosis
Endothelium
Heart Disease Prevention
Rankings
Ranking Based On Selection: 4
Iain S Whitaker
Metrics
H-Index
i10 Index
Citation Counts
53
162
10,449
Plastic Surgery
Tissue Engineering
Reconstructive Surgery
3D Printing
Rankings
Ranking Based On Selection: 5
Mark Cross
Metrics
H-Index
i10 Index
Citation Counts
53
167
10,217
numerical methods
mathematical model
computational model
high performance computing
dental materials
Rankings
Ranking Based On Selection: 6
Keith Lloyd
Metrics
H-Index
i10 Index
Citation Counts
48
99
9,433
Rankings
Ranking Based On Selection: 7
Yuqin Wang
Metrics
H-Index
i10 Index
Citation Counts
45
75
6,031
Rankings
Ranking Based On Selection: 8
Hayley Hutchings
Metrics
H-Index
i10 Index
Citation Counts
42
97
7,404
Rankings
Ranking Based On Selection: 9
Judy McKimm
Metrics
H-Index
i10 Index
Citation Counts
40
124
7,499
Rankings
Ranking Based On Selection: 10
Martin Hyde
Metrics
H-Index
i10 Index
Citation Counts
37
65
7,169
Ageing
health inequalities
retirement
work environment
Rankings
Ranking Based On Selection: 11
Owain W Howell
Metrics
H-Index
i10 Index
Citation Counts
36
52
11,230
neurobiology
neuroinflammation
multiple sclerosis
Rankings
Ranking Based On Selection: 12
Llinos Harris
Metrics
H-Index
i10 Index
Citation Counts
36
47
5,769
Rankings
Ranking Based On Selection: 13
Melitta McNarry
Metrics
H-Index
i10 Index
Citation Counts
34
95
5,452
Rankings
Ranking Based On Selection: 14
Mark Atkinson
Metrics
H-Index
i10 Index
Citation Counts
33
49
5,681
Rankings
Ranking Based On Selection: 15
Lucy J Griffiths
Metrics
H-Index
i10 Index
Citation Counts
32
66
6,424
Rankings
Ranking Based On Selection: 16
Charles Musselwhite
Metrics
H-Index
i10 Index
Citation Counts
32
63
3,626
gerontology
transport and health
road safety
older drivers
traffic and transport psychology
Rankings
Ranking Based On Selection: 17
David Hughes
Metrics
H-Index
i10 Index
Citation Counts
31
52
3,352
purchaser/provider reforms
universal healthcare coverage
rationing
medical sociology
Rankings
Ranking Based On Selection: 18
Amira Guirguis
Metrics
H-Index
i10 Index
Citation Counts
27
52
2,452
Rankings
Ranking Based On Selection: 19
Adam Pockett
Metrics
H-Index
i10 Index
Citation Counts
23
30
2,362
Perovskite Solar Cells
Dye-Sensitized Solar Cells
Solar Cell Characterization
Rankings
Ranking Based On Selection: 20
Marcella Bassetto
Metrics
H-Index
i10 Index
Citation Counts
22
30
1,245
Rankings
Ranking Based On Selection: 21
William L Allen
Metrics
H-Index
i10 Index
Citation Counts
22
24
4,478
Animal Coloration
Antipredator Adaptations
Comparative Evolutionary Ecology
Life History Evolution
Rankings
Ranking Based On Selection: 22
Hayley Young
Metrics
H-Index
i10 Index
Citation Counts
22
32
1,858
Nutrition
Sustainable diets
Interoception
Mood and Cognition
Heart rate variability
Rankings
Ranking Based On Selection: 23
Sherrill Snelgrove
Metrics
H-Index
i10 Index
Citation Counts
22
34
6,769
Chronic pain
health and illness beliefs
psychological and social methods
Rankings
Ranking Based On Selection: 24
WO Pickrell
Metrics
H-Index
i10 Index
Citation Counts
21
34
2,003
Rankings
Ranking Based On Selection: 25
Suresh Kumar Mohankumar
Metrics
H-Index
i10 Index
Citation Counts
21
55
2,989
Rankings
Ranking Based On Selection: 26
Louise Condon
Metrics
H-Index
i10 Index
Citation Counts
21
30
1,818
Rankings
Ranking Based On Selection: 27
Laith Al Rubaiy
Metrics
H-Index
i10 Index
Citation Counts
20
29
1,486
Gastroenterology and Heaptology and quality of life
Rankings
Ranking Based On Selection: 28
Rowena Jenkins
Metrics
H-Index
i10 Index
Citation Counts
20
22
1,722
Rankings
Ranking Based On Selection: 29
Jason Davies
Metrics
H-Index
i10 Index
Citation Counts
19
35
1,518
Rankings
Ranking Based On Selection: 30
RP Hugtenburg
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,385
radiotherapy physics
dosimetry
microdosimetry
Monte Carlo radiation transport
Rankings
Ranking Based On Selection: 31
Melisa Lisa J Wallace
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,902
Rankings
Ranking Based On Selection: 32
Simon N Williams
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,616
Rankings
Ranking Based On Selection: 33
Spyridon Theofilopoulos
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,165
Rankings
Ranking Based On Selection: 34
Hamish Laing
Metrics
H-Index
i10 Index
Citation Counts
16
23
1,119
plastic surgery
healthcare management
value-based healthcare
Rankings
Ranking Based On Selection: 35
GIULIO PRETA
Metrics
H-Index
i10 Index
Citation Counts
16
17
903
Rankings
Ranking Based On Selection: 36
Claudio Greco
Metrics
H-Index
i10 Index
Citation Counts
15
17
553
Rankings
Ranking Based On Selection: 37
Muhammad Saiful Islam
Metrics
H-Index
i10 Index
Citation Counts
15
76
3,057
Rankings
Ranking Based On Selection: 38
Andrew Morris
Metrics
H-Index
i10 Index
Citation Counts
15
19
888
Rankings
Ranking Based On Selection: 39
Nicholas Jones
Metrics
H-Index
i10 Index
Citation Counts
13
19
794
Rankings
Ranking Based On Selection: 40
Claire Hanley
Metrics
H-Index
i10 Index
Citation Counts
13
18
968
ageing
plasticity
brain stimulation
neuroimaging
psychophysics
Rankings
Ranking Based On Selection: 41
Nigel Francis
Metrics
H-Index
i10 Index
Citation Counts
10
10
802
Immunology Education
Authentic Assessment
Feedback
Groupwork
Rankings
Ranking Based On Selection: 42
Nia Davies
Metrics
H-Index
i10 Index
Citation Counts
10
10
420
Rankings
Ranking Based On Selection: 43
Thomas Darrell Love
Metrics
H-Index
i10 Index
Citation Counts
7
7
716
Rankings
Ranking Based On Selection: 44
Alys Einion
Metrics
H-Index
i10 Index
Citation Counts
7
3
182
Rankings
Ranking Based On Selection: 45
Carol Maddock
Metrics
H-Index
i10 Index
Citation Counts
5
4
241
Rankings
Ranking Based On Selection: 46
Emma Rees
Metrics
H-Index
i10 Index
Citation Counts
4
3
106
Rankings
Ranking Based On Selection: 47
Huri Ozturk
Metrics
H-Index
i10 Index
Citation Counts
4
2
67
Nursing
Hospital Infections
Antimicrobial Resistance
Antimicrobial Use
Rankings
Ranking Based On Selection: 48
Mike Seaborne
Metrics
H-Index
i10 Index
Citation Counts
4
2
65
Rankings
Ranking Based On Selection: 49
Julia Pridmore
Metrics
H-Index
i10 Index
Citation Counts
3
3
62
Rankings
Ranking Based On Selection: 50
Amer Al-Sahouri
Metrics
H-Index
i10 Index
Citation Counts
2
2
77
Rankings
Ranking Based On Selection: 51
Alexander C Reynolds
Metrics
H-Index
i10 Index
Citation Counts
2
2
58
Cardiac surgery
applied immunology
mechanical circulation
cardiac embryology
Rankings
Ranking Based On Selection: 52
Daniel King
Metrics
H-Index
i10 Index
Citation Counts
2
0
10