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 :1
Alan D Lopez
Epidemiology
burden of disease
causes of death
Metrics
H-Index
i10 Index
Citation
188
476
417,567
* Rankings
Ranking Based On Selection :2
Mark Jenkins
epidemiology
colorectal cancer
precision prevention
screening
genetic syndromes
Metrics
H-Index
i10 Index
Citation
105
401
40,087
* Rankings
Ranking Based On Selection :4
Tony Blakely
Epidemiology
tobacco control
diet
prevention
simulation modelling
Metrics
H-Index
i10 Index
Citation
83
325
25,052
* Rankings
Ranking Based On Selection :5
Brian Oldenburg
Public Health
NCD Prevention & Control
Implementation Science
Metrics
H-Index
i10 Index
Citation
81
302
27,954
* Rankings
Ranking Based On Selection :6
John D Mathews
Aboriginal healt
Infectious disease modelling
epidemiology
radiation
Metrics
H-Index
i10 Index
Citation
58
140
16,791
* Rankings
Ranking Based On Selection :8
Gillian Dite
epidemiology
statistics
breast cancer
risk prediction
polygenic risk
Metrics
H-Index
i10 Index
Citation
49
118
10,391
* Rankings
Ranking Based On Selection :11
Nicolas Roydon Smoll
Infectious diseases
Radiation Epidemiology
Brain tumour
Outbreak Analytics
Vaccine Effectiveness
Metrics
H-Index
i10 Index
Citation
37
70
3,872
* Rankings
Ranking Based On Selection :12
Ken Winkel
Public Health
Toxinology
Immunology
Medical History
Indigenous Knowledges
Metrics
H-Index
i10 Index
Citation
37
82
5,406
* Rankings
Ranking Based On Selection :13
Claudia H Marck
Public Health
Multiple Sclerosis
health behaviours
rehabilitation
Metrics
H-Index
i10 Index
Citation
35
61
3,152
* Rankings
Ranking Based On Selection :14
Berhe Sahle
Epidemiology
Non-communicable diseases
Global Public Health
Metrics
H-Index
i10 Index
Citation
31
48
14,289
* Rankings
Ranking Based On Selection :15
Jessica A Heerde
homelessness
mortality
health outcomes
adolescent health
public health
Metrics
H-Index
i10 Index
Citation
27
44
2,668
* Rankings
Ranking Based On Selection :16
Gregory Armstrong
mental health
suicide
injecting drug use
public health
Indigenous health
Metrics
H-Index
i10 Index
Citation
27
64
2,310
* Rankings
Ranking Based On Selection :17
Jennifer L Marino
epidemiology
women's health
sexuality
reproductive health
adolescent health
Metrics
H-Index
i10 Index
Citation
27
44
2,308
Laima Brazionis
Epidemiology
Diabetes
Telemedicine
Clinical Trials
Diabetic Retinopathy
Metrics
H-Index
i10 Index
Citation
25
42
3,407
Jeanette Reece
Epidemiology
HIV
prostate cancer
colorectal cancer
immunology
Metrics
H-Index
i10 Index
Citation
24
40
1,896
Simon Crouch
Public Health
Child Health
Same-Sex Families
Heteronormativity
Communicable Disease
Metrics
H-Index
i10 Index
Citation
13
13
709
Rankings
Ranking Based On Selection: 1
Alan D Lopez
Metrics
H-Index
i10 Index
Citation Counts
188
476
417,567
Rankings
Ranking Based On Selection: 2
Mark Jenkins
Metrics
H-Index
i10 Index
Citation Counts
105
401
40,087
epidemiology
colorectal cancer
precision prevention
screening
genetic syndromes
Rankings
Ranking Based On Selection: 3
Shyamali Chandrika Dharmage
Metrics
H-Index
i10 Index
Citation Counts
100
403
45,882
Rankings
Ranking Based On Selection: 4
Tony Blakely
Metrics
H-Index
i10 Index
Citation Counts
83
325
25,052
Epidemiology
tobacco control
diet
prevention
simulation modelling
Rankings
Ranking Based On Selection: 5
Brian Oldenburg
Metrics
H-Index
i10 Index
Citation Counts
81
302
27,954
Public Health
NCD Prevention & Control
Implementation Science
Rankings
Ranking Based On Selection: 6
John D Mathews
Metrics
H-Index
i10 Index
Citation Counts
58
140
16,791
Aboriginal healt
Infectious disease modelling
epidemiology
radiation
Rankings
Ranking Based On Selection: 7
Lisa Gibbs
Metrics
H-Index
i10 Index
Citation Counts
49
124
11,146
Rankings
Ranking Based On Selection: 8
Gillian Dite
Metrics
H-Index
i10 Index
Citation Counts
49
118
10,391
epidemiology
statistics
breast cancer
risk prediction
polygenic risk
Rankings
Ranking Based On Selection: 9
Kelaher M
Metrics
H-Index
i10 Index
Citation Counts
47
163
9,959
Rankings
Ranking Based On Selection: 10
Rebecca Armstrong
Metrics
H-Index
i10 Index
Citation Counts
38
73
8,274
Rankings
Ranking Based On Selection: 11
Nicolas Roydon Smoll
Metrics
H-Index
i10 Index
Citation Counts
37
70
3,872
Infectious diseases
Radiation Epidemiology
Brain tumour
Outbreak Analytics
Vaccine Effectiveness
Rankings
Ranking Based On Selection: 12
Ken Winkel
Metrics
H-Index
i10 Index
Citation Counts
37
82
5,406
Public Health
Toxinology
Immunology
Medical History
Indigenous Knowledges
Rankings
Ranking Based On Selection: 13
Claudia H Marck
Metrics
H-Index
i10 Index
Citation Counts
35
61
3,152
Public Health
Multiple Sclerosis
health behaviours
rehabilitation
Rankings
Ranking Based On Selection: 14
Berhe Sahle
Metrics
H-Index
i10 Index
Citation Counts
31
48
14,289
Epidemiology
Non-communicable diseases
Global Public Health
Rankings
Ranking Based On Selection: 15
Jessica A Heerde
Metrics
H-Index
i10 Index
Citation Counts
27
44
2,668
homelessness
mortality
health outcomes
adolescent health
public health
Rankings
Ranking Based On Selection: 16
Gregory Armstrong
Metrics
H-Index
i10 Index
Citation Counts
27
64
2,310
mental health
suicide
injecting drug use
public health
Indigenous health
Rankings
Ranking Based On Selection: 17
Jennifer L Marino
Metrics
H-Index
i10 Index
Citation Counts
27
44
2,308
epidemiology
women's health
sexuality
reproductive health
adolescent health
Rankings
Ranking Based On Selection: 18
Laima Brazionis
Metrics
H-Index
i10 Index
Citation Counts
25
42
3,407
Epidemiology
Diabetes
Telemedicine
Clinical Trials
Diabetic Retinopathy
Rankings
Ranking Based On Selection: 19
Sandra Neate
Metrics
H-Index
i10 Index
Citation Counts
24
41
1,663
Rankings
Ranking Based On Selection: 20
Jeanette Reece
Metrics
H-Index
i10 Index
Citation Counts
24
40
1,896
Epidemiology
HIV
prostate cancer
colorectal cancer
immunology
Rankings
Ranking Based On Selection: 21
Dinh Son Bui
Metrics
H-Index
i10 Index
Citation Counts
21
44
1,894
Rankings
Ranking Based On Selection: 22
Kathryn Snow
Metrics
H-Index
i10 Index
Citation Counts
20
24
1,504
Rankings
Ranking Based On Selection: 23
Miranda Smith
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,709
Rankings
Ranking Based On Selection: 24
Caroline van Gemert
Metrics
H-Index
i10 Index
Citation Counts
16
28
953
Rankings
Ranking Based On Selection: 25
Simon Crouch
Metrics
H-Index
i10 Index
Citation Counts
13
13
709
Public Health
Child Health
Same-Sex Families
Heteronormativity
Communicable Disease
Rankings
Ranking Based On Selection: 26
Capucine Penicaud
Metrics
H-Index
i10 Index
Citation Counts
9
7
1,320
Rankings
Ranking Based On Selection: 27
Shahid Mahmood
Metrics
H-Index
i10 Index
Citation Counts
9
8
502