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
Roy Chinwuba Uchefuna
Endocrinology
Respiratory Physiology
Gastrointestinal Physiology
Metrics
H-Index
i10 Index
Citation
13
16
384
* Rankings
Ranking Based On Selection: 4
Henry Chima Okpara
Endocrinology and Metabolism
Metabolic Medicine
Immunology and Immunodiagnostics
Metrics
H-Index
i10 Index
Citation
12
14
570
* Rankings
Ranking Based On Selection: 6
Onah Christian Ejike
Chemical Pathology
Toxicology
Endocrinology
oxidative stress
and trace elements metabolism
Metrics
H-Index
i10 Index
Citation
10
12
564
* Rankings
Ranking Based On Selection: 7
Ufearo Cs
Endocrinology and Reproductive Physiology
Environmental Physiology
Metrics
H-Index
i10 Index
Citation
10
11
482
Odetola Anthony Olusoji
Neuroendocrinology
Reproductive Physiology
Drug metabolism
Environmental Physiology
Metrics
H-Index
i10 Index
Citation
9
7
274
Rankings
Ranking Based On Selection: 1
Ogonna Celestine Oguejiofor
Metrics
H-Index
i10 Index
Citation Counts
15
20
976
Rankings
Ranking Based On Selection: 2
Ignatius C Maduka
Metrics
H-Index
i10 Index
Citation Counts
14
16
916
Rankings
Ranking Based On Selection: 3
Roy Chinwuba Uchefuna
Metrics
H-Index
i10 Index
Citation Counts
13
16
384
Endocrinology
Respiratory Physiology
Gastrointestinal Physiology
Rankings
Ranking Based On Selection: 4
Henry Chima Okpara
Metrics
H-Index
i10 Index
Citation Counts
12
14
570
Endocrinology and Metabolism
Metabolic Medicine
Immunology and Immunodiagnostics
Rankings
Ranking Based On Selection: 5
Onyema Athanatius Onyegbule
Metrics
H-Index
i10 Index
Citation Counts
11
13
322
Rankings
Ranking Based On Selection: 6
Onah Christian Ejike
Metrics
H-Index
i10 Index
Citation Counts
10
12
564
Chemical Pathology
Toxicology
Endocrinology
oxidative stress
and trace elements metabolism
Rankings
Ranking Based On Selection: 7
Ufearo Cs
Metrics
H-Index
i10 Index
Citation Counts
10
11
482
Endocrinology and Reproductive Physiology
Environmental Physiology
Rankings
Ranking Based On Selection: 8
Odetola Anthony Olusoji
Metrics
H-Index
i10 Index
Citation Counts
9
7
274
Neuroendocrinology
Reproductive Physiology
Drug metabolism
Environmental Physiology
Rankings
Ranking Based On Selection: 9
Onwukwe Chikezie Hart
Metrics
H-Index
i10 Index
Citation Counts
4
3
181