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
Robert W Snow
Malaria
Africa
Metrics
H-Index
i10 Index
Citation
139
434
69,531
* Rankings
Ranking Based On Selection :3
Linnet Ongeri
Global Mental Health
Suicide
Psychiatric Epidemiology
Metrics
H-Index
i10 Index
Citation
16
28
1,035
* Rankings
Ranking Based On Selection :4
Geoffrey Murai Maina|Geoffrey M. Maina, Geoffrey Muriithi Maina
HIV
immigrant health
mental health
substance use and addiction
intimate partner violence
Metrics
H-Index
i10 Index
Citation
14
22
714
Martin Bundi Mwebia
Medical Science
Bacteriology
Biosafety
Biosecurity
Metrics
H-Index
i10 Index
Citation
9
9
245
Asiko Ongaya
Microbiology
Mycobateriology
TB-HIV coinfection
Immunology
Antimicrobial Resistance
Metrics
H-Index
i10 Index
Citation
4
2
57
Fredrick Ogumbo
Diagnostic accuracy
Mycobacteriology
Antimicrobial drug resistance
Virology
Molecular Epidemiology
Metrics
H-Index
i10 Index
Citation
1
1
36
Rankings
Ranking Based On Selection: 1
Robert W Snow
Metrics
H-Index
i10 Index
Citation Counts
139
434
69,531
Rankings
Ranking Based On Selection: 2
Damaris Matoke-Muhia
Metrics
H-Index
i10 Index
Citation Counts
18
25
3,234
Rankings
Ranking Based On Selection: 3
Linnet Ongeri
Metrics
H-Index
i10 Index
Citation Counts
16
28
1,035
Global Mental Health
Suicide
Psychiatric Epidemiology
Rankings
Ranking Based On Selection: 4
HIV
immigrant health
mental health
substance use and addiction
intimate partner violence
Rankings
Ranking Based On Selection: 5
Martin Bundi Mwebia
Metrics
H-Index
i10 Index
Citation Counts
9
9
245
Medical Science
Bacteriology
Biosafety
Biosecurity
Rankings
Ranking Based On Selection: 6
Mary Inziani Matilu
Metrics
H-Index
i10 Index
Citation Counts
4
4
114
Rankings
Ranking Based On Selection: 7
Asiko Ongaya
Metrics
H-Index
i10 Index
Citation Counts
4
2
57
Microbiology
Mycobateriology
TB-HIV coinfection
Immunology
Antimicrobial Resistance
Rankings
Ranking Based On Selection: 8
Fredrick Ogumbo
Metrics
H-Index
i10 Index
Citation Counts
1
1
36
Diagnostic accuracy
Mycobacteriology
Antimicrobial drug resistance
Virology
Molecular Epidemiology