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" (873,690 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: 3
Kevin A. Fenton
Epidemiology
HIV
Public Health
Leadership
Inequalities
Metrics
H-Index
i10 Index
Citation
76
195
20,515
* Rankings
Ranking Based On Selection: 4
Norman Kenneth Fry
Vaccine preventable bacteria
molecular epidemiology
WGS
public health
Metrics
H-Index
i10 Index
Citation
61
142
13,270
* Rankings
Ranking Based On Selection: 8
Gordon Nichols
Climate change
waterborne diseases
Cryptosporidium
Campylobacter
food-borne diseases
Metrics
H-Index
i10 Index
Citation
53
98
9,586
* Rankings
Ranking Based On Selection: 10
Alex J Elliot
syndromic surveillance
epidemiology
respiratory viruses
Metrics
H-Index
i10 Index
Citation
46
117
7,537

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Rankings
Ranking Based On Selection: 16
Elizabeth A Ainsbury
Ionising radiation
Non cancer radiation effects
Statistics for radiation biology
Cytogenetics
Biodosimetry
Metrics
H-Index
i10 Index
Citation
36
105
4,900
* Rankings
Ranking Based On Selection: 18
Michael Edelstein
infectious disease epidemiology
vaccine preventable diseases
global health policy
disease surveillance
outbreaks
Metrics
H-Index
i10 Index
Citation
33
72
9,079
* Rankings
Ranking Based On Selection: 19
Diane Ashiru-Oredope
antibiotic resistance
antimicrobial resistance
antimicrobial stewardship
Metrics
H-Index
i10 Index
Citation
32
82
3,879
* Rankings
Ranking Based On Selection: 23
Clare Pearson
Epidemiology
Routine data
Cancer
Public Health
Chronic Disease
Metrics
H-Index
i10 Index
Citation
28
32
9,078
* Rankings
Ranking Based On Selection: 25
Raquel Duarte-Davidson
chemical risk assessment
public health
chemical incident response
Metrics
H-Index
i10 Index
Citation
26
36
3,022
* Rankings
Ranking Based On Selection: 28
Maeve K Lalor
Tuberculosis
BCG vaccine
Drug Resistance
Molecular epidemiology
Immunology
Metrics
H-Index
i10 Index
Citation
25
39
2,573
* Rankings
Ranking Based On Selection: 30
Donna Lecky
Antimicrobial stewardship
qualitative research
intervention development
evaluation
primary care
Metrics
H-Index
i10 Index
Citation
24
45
1,775
* Rankings
Ranking Based On Selection: 32
Zahin Amin-Chowdhury
epidemiology
vaccine preventable diseases
invasive pneumococcal disease
COVID-19
Metrics
H-Index
i10 Index
Citation
23
31
2,967
* Rankings
Ranking Based On Selection: 34
Obaghe Edeghere
Epidemiology
Public Health
Surveillance
Infectious diseases
Metrics
H-Index
i10 Index
Citation
22
36
1,831
* Rankings
Ranking Based On Selection: 38
Freja Kirsebom
Respiratory Viruses
Infectious disease
Immunology
Epidemiology of Infectious Disease
Metrics
H-Index
i10 Index
Citation
21
28
5,058
* Rankings
Ranking Based On Selection: 39
Gwen Sascha Fernandes
Public Health
Epidemiology
Sports Medicine
Early Childhood Adversities
NCDs in LMICs
Metrics
H-Index
i10 Index
Citation
20
36
1,412
* Rankings
Ranking Based On Selection: 40
Ioannis Karagiannis
infectious disease epidemiology
infectious disease modelling
training
outbreak investigations
Metrics
H-Index
i10 Index
Citation
20
22
2,821
* Rankings
Ranking Based On Selection: 51
Joanna Bacon
tuberculosis
antibiotic resistance
mycobacterial physiology & pathogenesis
and drug discovery
Metrics
H-Index
i10 Index
Citation
17
23
1,380
* Rankings
Ranking Based On Selection: 52
Amy Mikhail
Infectious disease diagnostics & epidemiology
global health
GI pathogens
whole genome sequencing for public health
Metrics
H-Index
i10 Index
Citation
16
19
2,461
* Rankings
Ranking Based On Selection: 53
Jennifer A Davidson
epidemiology
surveillance
infectious diseases
cardiovascular diseases
Metrics
H-Index
i10 Index
Citation
16
17
837
* Rankings
Ranking Based On Selection: 59
Abbygail Jaccard
Mathematical modelling
epidemiological modelling and analysis
economic analysis and complexity science
Metrics
H-Index
i10 Index
Citation
14
15
1,017
* Rankings
Ranking Based On Selection: 62
Kazim Beebeejaun
immunisation
infectious diseases
meningococcal disease
vaccine coverage
hepatitis
Metrics
H-Index
i10 Index
Citation
13
16
1,339
* Rankings
Ranking Based On Selection: 64
Alicia Barrasa
Infectious disease epidemiology
training
surveillance
outbreak investigation
Metrics
H-Index
i10 Index
Citation
13
17
760
Ravikumar Balakrishnan
Public Health
Health Protection
Epidemiology
Children & Young People
Health inequalities
Metrics
H-Index
i10 Index
Citation
8
8
4,836
Kerry A. Broom
Knowledge Mobilisation
Electromagnetic Fields
Neurobiology
Neuro-inflammation
Behaviour
Metrics
H-Index
i10 Index
Citation
7
6
311
Rankings
Ranking Based On Selection: 1
Shamez Ladhani
Metrics
H-Index
i10 Index
Citation Counts
89
357
33,848
Rankings
Ranking Based On Selection: 2
Miles Carroll
Metrics
H-Index
i10 Index
Citation Counts
88
216
42,708
Rankings
Ranking Based On Selection: 3
Kevin A. Fenton
Metrics
H-Index
i10 Index
Citation Counts
76
195
20,515
Rankings
Ranking Based On Selection: 4
Norman Kenneth Fry
Metrics
H-Index
i10 Index
Citation Counts
61
142
13,270
Vaccine preventable bacteria
molecular epidemiology
WGS
public health
Rankings
Ranking Based On Selection: 5
Roger Hewson
Metrics
H-Index
i10 Index
Citation Counts
60
146
13,382
Rankings
Ranking Based On Selection: 7
Jolyon M Medlock
Metrics
H-Index
i10 Index
Citation Counts
55
146
11,645
Rankings
Ranking Based On Selection: 8
Gordon Nichols
Metrics
H-Index
i10 Index
Citation Counts
53
98
9,586
Climate change
waterborne diseases
Cryptosporidium
Campylobacter
food-borne diseases
Rankings
Ranking Based On Selection: 9
Julia Stowe
Metrics
H-Index
i10 Index
Citation Counts
46
83
15,580
Rankings
Ranking Based On Selection: 10
Alex J Elliot
Metrics
H-Index
i10 Index
Citation Counts
46
117
7,537

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 13
Andrew Gorringe
Metrics
H-Index
i10 Index
Citation Counts
43
95
5,105
Rankings
Ranking Based On Selection: 14
Ian Simms
Metrics
H-Index
i10 Index
Citation Counts
40
78
6,018
Rankings
Ranking Based On Selection: 15
Allan Bennett
Metrics
H-Index
i10 Index
Citation Counts
37
70
6,044
Rankings
Ranking Based On Selection: 16
Elizabeth A Ainsbury
Metrics
H-Index
i10 Index
Citation Counts
36
105
4,900
Ionising radiation
Non cancer radiation effects
Statistics for radiation biology
Cytogenetics
Biodosimetry
Rankings
Ranking Based On Selection: 18
Michael Edelstein
Metrics
H-Index
i10 Index
Citation Counts
33
72
9,079
infectious disease epidemiology
vaccine preventable diseases
global health policy
disease surveillance
outbreaks
Rankings
Ranking Based On Selection: 19
Diane Ashiru-Oredope
Metrics
H-Index
i10 Index
Citation Counts
32
82
3,879
antibiotic resistance
antimicrobial resistance
antimicrobial stewardship
Rankings
Ranking Based On Selection: 20
Brian Eastwood
Metrics
H-Index
i10 Index
Citation Counts
31
52
4,406
Rankings
Ranking Based On Selection: 23
Clare Pearson
Metrics
H-Index
i10 Index
Citation Counts
28
32
9,078
Epidemiology
Routine data
Cancer
Public Health
Chronic Disease
Rankings
Ranking Based On Selection: 24
Yoon Hong Choi
Metrics
H-Index
i10 Index
Citation Counts
28
37
2,852
Rankings
Ranking Based On Selection: 25
Raquel Duarte-Davidson
Metrics
H-Index
i10 Index
Citation Counts
26
36
3,022
chemical risk assessment
public health
chemical incident response
Rankings
Ranking Based On Selection: 28
Maeve K Lalor
Metrics
H-Index
i10 Index
Citation Counts
25
39
2,573
Tuberculosis
BCG vaccine
Drug Resistance
Molecular epidemiology
Immunology
Rankings
Ranking Based On Selection: 29
Alexander GC Vaux
Metrics
H-Index
i10 Index
Citation Counts
24
40
2,105
Rankings
Ranking Based On Selection: 30
Donna Lecky
Metrics
H-Index
i10 Index
Citation Counts
24
45
1,775
Antimicrobial stewardship
qualitative research
intervention development
evaluation
primary care
Rankings
Ranking Based On Selection: 31
Lisa Byrne
Metrics
H-Index
i10 Index
Citation Counts
24
35
1,717
Rankings
Ranking Based On Selection: 32
Zahin Amin-Chowdhury
Metrics
H-Index
i10 Index
Citation Counts
23
31
2,967
epidemiology
vaccine preventable diseases
invasive pneumococcal disease
COVID-19
Rankings
Ranking Based On Selection: 33
Elise Tessier
Metrics
H-Index
i10 Index
Citation Counts
22
34
7,296
Rankings
Ranking Based On Selection: 34
Obaghe Edeghere
Metrics
H-Index
i10 Index
Citation Counts
22
36
1,831
Epidemiology
Public Health
Surveillance
Infectious diseases
Rankings
Ranking Based On Selection: 35
Paul Birrell
Metrics
H-Index
i10 Index
Citation Counts
22
36
1,752
Rankings
Ranking Based On Selection: 36
Karen Exley
Metrics
H-Index
i10 Index
Citation Counts
22
31
1,746
Rankings
Ranking Based On Selection: 37
Jean L. Mbisa
Metrics
H-Index
i10 Index
Citation Counts
22
39
2,051
Rankings
Ranking Based On Selection: 38
Freja Kirsebom
Metrics
H-Index
i10 Index
Citation Counts
21
28
5,058
Respiratory Viruses
Infectious disease
Immunology
Epidemiology of Infectious Disease
Rankings
Ranking Based On Selection: 39
Gwen Sascha Fernandes
Metrics
H-Index
i10 Index
Citation Counts
20
36
1,412
Public Health
Epidemiology
Sports Medicine
Early Childhood Adversities
NCDs in LMICs
Rankings
Ranking Based On Selection: 40
Ioannis Karagiannis
Metrics
H-Index
i10 Index
Citation Counts
20
22
2,821
infectious disease epidemiology
infectious disease modelling
training
outbreak investigations
Rankings
Ranking Based On Selection: 41
Ines Campos-Matos
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,653
Rankings
Ranking Based On Selection: 43
Katy -Anne Thompson
Metrics
H-Index
i10 Index
Citation Counts
19
22
2,385
Rankings
Ranking Based On Selection: 44
Anaïs Painset
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,391
Rankings
Ranking Based On Selection: 46
Laura Sibley
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,039
Rankings
Ranking Based On Selection: 47
Emma L. Gillingham
Metrics
H-Index
i10 Index
Citation Counts
17
26
981
Rankings
Ranking Based On Selection: 50
Mary Bythell
Metrics
H-Index
i10 Index
Citation Counts
17
22
2,027
Rankings
Ranking Based On Selection: 51
Joanna Bacon
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,380
tuberculosis
antibiotic resistance
mycobacterial physiology & pathogenesis
and drug discovery
Rankings
Ranking Based On Selection: 52
Amy Mikhail
Metrics
H-Index
i10 Index
Citation Counts
16
19
2,461
Infectious disease diagnostics & epidemiology
global health
GI pathogens
whole genome sequencing for public health
Rankings
Ranking Based On Selection: 53
Jennifer A Davidson
Metrics
H-Index
i10 Index
Citation Counts
16
17
837
epidemiology
surveillance
infectious diseases
cardiovascular diseases
Rankings
Ranking Based On Selection: 55
Lucy Bock
Metrics
H-Index
i10 Index
Citation Counts
15
15
1,214
Rankings
Ranking Based On Selection: 56
Karen Elizabeth Kempsell
Metrics
H-Index
i10 Index
Citation Counts
15
20
1,530
Rankings
Ranking Based On Selection: 58
Charlotte Robin
Metrics
H-Index
i10 Index
Citation Counts
14
18
908
Rankings
Ranking Based On Selection: 59
Abbygail Jaccard
Metrics
H-Index
i10 Index
Citation Counts
14
15
1,017
Mathematical modelling
epidemiological modelling and analysis
economic analysis and complexity science
Rankings
Ranking Based On Selection: 60
Emma Bennett
Metrics
H-Index
i10 Index
Citation Counts
14
16
863
Rankings
Ranking Based On Selection: 62
Kazim Beebeejaun
Metrics
H-Index
i10 Index
Citation Counts
13
16
1,339
immunisation
infectious diseases
meningococcal disease
vaccine coverage
hepatitis
Rankings
Ranking Based On Selection: 63
Niamh Murphy
Metrics
H-Index
i10 Index
Citation Counts
13
16
818
Rankings
Ranking Based On Selection: 64
Alicia Barrasa
Metrics
H-Index
i10 Index
Citation Counts
13
17
760
Infectious disease epidemiology
training
surveillance
outbreak investigation
Rankings
Ranking Based On Selection: 67
Alex Bhattacharya
Metrics
H-Index
i10 Index
Citation Counts
11
11
660
Rankings
Ranking Based On Selection: 68
Anita A. Shah
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,049
Rankings
Ranking Based On Selection: 69
Nurin Abdul Aziz
Metrics
H-Index
i10 Index
Citation Counts
8
7
3,872
Rankings
Ranking Based On Selection: 70
Ravikumar Balakrishnan
Metrics
H-Index
i10 Index
Citation Counts
8
8
4,836
Public Health
Health Protection
Epidemiology
Children & Young People
Health inequalities
Rankings
Ranking Based On Selection: 72
Kerry A. Broom
Metrics
H-Index
i10 Index
Citation Counts
7
6
311
Knowledge Mobilisation
Electromagnetic Fields
Neurobiology
Neuro-inflammation
Behaviour
Rankings
Ranking Based On Selection: 73
Ks Harker
Metrics
H-Index
i10 Index
Citation Counts
5
5
330
Rankings
Ranking Based On Selection: 74
Fernando Capelastegui
Metrics
H-Index
i10 Index
Citation Counts
5
4
140