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" (901,365 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
Willem Hanekom
Tuberculosis
Vaccinology
Immunology
Clinical Trials
Metrics
H-Index
i10 Index
Citation
86
229
25,874
* Rankings
Ranking Based On Selection :2
Thumbi Ndung'U
virology
immunology
host/pathogen interactions
vaccines
Metrics
H-Index
i10 Index
Citation
70
236
16,354
* Rankings
Ranking Based On Selection :3
A Pym
Mycobacterium tuberculosis
Metrics
H-Index
i10 Index
Citation
53
105
16,743
* Rankings
Ranking Based On Selection :4
Kobus Herbst
Health Informatics
Epidemiology
Population Science
Metrics
H-Index
i10 Index
Citation
50
104
9,700
* Rankings
Ranking Based On Selection :5
Alex Sigal
Systems Virology
Emerging Viruses
HIV
Metrics
H-Index
i10 Index
Citation
49
78
19,798
* Rankings
Ranking Based On Selection :7
Nceba Gqaleni
Traditional Medicine
Policy Engagement
Metrics
H-Index
i10 Index
Citation
19
30
1,692
* Rankings
Ranking Based On Selection :8
Md Aejazur Rahman
Tuberculosis
Host pathogen interaction
Immunology
Biochemistry
Molecular biology
Metrics
H-Index
i10 Index
Citation
14
16
889
* Rankings
Ranking Based On Selection :10
RESIGN GUNDA
Public Health
Population Science
Epidemiology
Programme Management
Metrics
H-Index
i10 Index
Citation
12
14
449
* Rankings
Ranking Based On Selection :13
Thabo Mpotje
Clinical Sciences and Immunology
Metrics
H-Index
i10 Index
Citation
7
6
174
* Rankings
Ranking Based On Selection :14
Ntombizonke A. Gumede
family issues
sexual and reproductive justice and freedom
Gender issues
social demography and epidemiology
Metrics
H-Index
i10 Index
Citation
6
5
182
* Rankings
Ranking Based On Selection :15
Rujeko Samanthia Chidawanyika Nee Chimukuche|Rujeko Samanthia Chidawanyika
Women and girls' health
Gender and migration
Health systems strengthening
HIV/AIDS
Differentiated care services
Metrics
H-Index
i10 Index
Citation
6
2
104
Manono Luthuli
social science
mental health
men's sexual reproductive health
adolescent health
Metrics
H-Index
i10 Index
Citation
5
3
92
Kingsley Stephen Orievulu
Development Interventions
livelihoods security and rural poverty
climate change and HIV care utilization
Metrics
H-Index
i10 Index
Citation
4
3
72
Tawanda Mandizvo
Virology
Medicine
Microfluidics
Infectious Diseases
Immunometabolism
Metrics
H-Index
i10 Index
Citation
4
2
113
Delon Naicker
Medical Microbiology
Virology
Histopathology
Environmental Science
Chemistry
Metrics
H-Index
i10 Index
Citation
3
1
93
Lusanda Mazibuko
Medical Statistics
Infectious Diseases
Surveillance Systems
Metrics
H-Index
i10 Index
Citation
3
1
29
Rankings
Ranking Based On Selection: 1
Willem Hanekom
Metrics
H-Index
i10 Index
Citation Counts
86
229
25,874
Tuberculosis
Vaccinology
Immunology
Clinical Trials
Rankings
Ranking Based On Selection: 2
Thumbi Ndung'U
Metrics
H-Index
i10 Index
Citation Counts
70
236
16,354
virology
immunology
host/pathogen interactions
vaccines
Rankings
Ranking Based On Selection: 3
A Pym
Metrics
H-Index
i10 Index
Citation Counts
53
105
16,743
Mycobacterium tuberculosis
Rankings
Ranking Based On Selection: 4
Kobus Herbst
Metrics
H-Index
i10 Index
Citation Counts
50
104
9,700
Health Informatics
Epidemiology
Population Science
Rankings
Ranking Based On Selection: 5
Alex Sigal
Metrics
H-Index
i10 Index
Citation Counts
49
78
19,798
Systems Virology
Emerging Viruses
HIV
Rankings
Ranking Based On Selection: 6
Henrik Kløverpris
Metrics
H-Index
i10 Index
Citation Counts
29
50
3,144
Rankings
Ranking Based On Selection: 7
Nceba Gqaleni
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,692
Traditional Medicine
Policy Engagement
Rankings
Ranking Based On Selection: 8
Md Aejazur Rahman
Metrics
H-Index
i10 Index
Citation Counts
14
16
889
Tuberculosis
Host pathogen interaction
Immunology
Biochemistry
Molecular biology
Rankings
Ranking Based On Selection: 9
Bridgette Cumming
Metrics
H-Index
i10 Index
Citation Counts
13
15
1,305
Rankings
Ranking Based On Selection: 10
RESIGN GUNDA
Metrics
H-Index
i10 Index
Citation Counts
12
14
449
Public Health
Population Science
Epidemiology
Programme Management
Rankings
Ranking Based On Selection: 11
Stephen Olivier
Metrics
H-Index
i10 Index
Citation Counts
8
7
285
Rankings
Ranking Based On Selection: 12
Jared Mackenzie
Metrics
H-Index
i10 Index
Citation Counts
8
6
289
Rankings
Ranking Based On Selection: 13
Thabo Mpotje
Metrics
H-Index
i10 Index
Citation Counts
7
6
174
Clinical Sciences and Immunology
Rankings
Ranking Based On Selection: 14
Ntombizonke A. Gumede
Metrics
H-Index
i10 Index
Citation Counts
6
5
182
family issues
sexual and reproductive justice and freedom
Gender issues
social demography and epidemiology
Rankings
Ranking Based On Selection: 15
Women and girls' health
Gender and migration
Health systems strengthening
HIV/AIDS
Differentiated care services
Rankings
Ranking Based On Selection: 16
Manono Luthuli
Metrics
H-Index
i10 Index
Citation Counts
5
3
92
social science
mental health
men's sexual reproductive health
adolescent health
Rankings
Ranking Based On Selection: 17
Omolara Baiyegunhi
Metrics
H-Index
i10 Index
Citation Counts
4
4
103
Rankings
Ranking Based On Selection: 18
Kingsley Stephen Orievulu
Metrics
H-Index
i10 Index
Citation Counts
4
3
72
Development Interventions
livelihoods security and rural poverty
climate change and HIV care utilization
Rankings
Ranking Based On Selection: 19
Nompumelelo Ngobese
Metrics
H-Index
i10 Index
Citation Counts
4
3
53
Poverty
Education and other Social Issues
Rankings
Ranking Based On Selection: 20
Tawanda Mandizvo
Metrics
H-Index
i10 Index
Citation Counts
4
2
113
Virology
Medicine
Microfluidics
Infectious Diseases
Immunometabolism
Rankings
Ranking Based On Selection: 21
Delon Naicker
Metrics
H-Index
i10 Index
Citation Counts
3
1
93
Medical Microbiology
Virology
Histopathology
Environmental Science
Chemistry
Rankings
Ranking Based On Selection: 22
Lusanda Mazibuko
Metrics
H-Index
i10 Index
Citation Counts
3
1
29
Medical Statistics
Infectious Diseases
Surveillance Systems
Rankings
Ranking Based On Selection: 23
Bongiwe Mahlobo
Metrics
H-Index
i10 Index
Citation Counts
3
1
23