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" (910,673 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
Sammy M. Njenga
Neglected Tropical Diseases (NTDs)
public health
epidemiology
molecular parasitology
Metrics
H-Index
i10 Index
Citation
45
111
6,714
* Rankings
Ranking Based On Selection: 2
Maricianah Onono
Epidemiology
Health Systems
Sexual reproductive health
Community Health Systems
Metrics
H-Index
i10 Index
Citation
36
73
4,109
Aggrey Gisiora Mokaya
Public Health
Adolescent Health
Global Mental Health
Innovation
Knowledge Translation
Metrics
H-Index
i10 Index
Citation
5
3
111
Bridget Kimani
Neglected tropical diseases and Infectious Diseases
Epidemiology
Implementation Science
Public Health
Research Ethics
Metrics
H-Index
i10 Index
Citation
3
3
58
Rankings
Ranking Based On Selection: 1
Sammy M. Njenga
Metrics
H-Index
i10 Index
Citation Counts
45
111
6,714
Neglected Tropical Diseases (NTDs)
public health
epidemiology
molecular parasitology
Rankings
Ranking Based On Selection: 2
Maricianah Onono
Metrics
H-Index
i10 Index
Citation Counts
36
73
4,109
Epidemiology
Health Systems
Sexual reproductive health
Community Health Systems
Rankings
Ranking Based On Selection: 3
Charles Obonyo|Charles O. Obonyo
Metrics
H-Index
i10 Index
Citation Counts
21
25
2,597
Rankings
Ranking Based On Selection: 4
Echoka Elizabeth
Metrics
H-Index
i10 Index
Citation Counts
13
14
883
Rankings
Ranking Based On Selection: 5
Aggrey Gisiora Mokaya
Metrics
H-Index
i10 Index
Citation Counts
5
3
111
Public Health
Adolescent Health
Global Mental Health
Innovation
Knowledge Translation
Rankings
Ranking Based On Selection: 6
Bridget Kimani
Metrics
H-Index
i10 Index
Citation Counts
3
3
58
Neglected tropical diseases and Infectious Diseases
Epidemiology
Implementation Science
Public Health
Research Ethics
Rankings
Ranking Based On Selection: 7
Judy Mwai
Metrics
H-Index
i10 Index
Citation Counts
3
1
69