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" (870,053 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
Raphael N Okigbo|R N Okigbo, Raphael Nnajiofor Okigbo, N Okigbo
Mycology and Plant Pathology
Phytomedicine
Plant Microbiology
Aquatic Botany
Metrics
H-Index
i10 Index
Citation
32
56
4,229
Okereke Cn
Plant Ecology
Medicinal Plants
Forestery
Agro-ecology
conservation of Ntural Resources
Metrics
H-Index
i10 Index
Citation
9
9
403
Iroka, Chisom Finian
Plant Taxonomy
plant anatomy
plant molecular biology
plant ecology and biodiversity
Metrics
H-Index
i10 Index
Citation
9
9
311
Ezekwesili-Ofili Jo
medicinal plant pharmacology and toxicology
cancer research
antioxidants
chemical and environmental toxicology
aflatoxins
Metrics
H-Index
i10 Index
Citation
8
7
1,004
Anukwuorji Chidozie Azubuike
Plant Pathology
Mycology
Botany
Mushroom Science
Aquatic Mycology
Metrics
H-Index
i10 Index
Citation
8
5
182

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Ofobeze Tochukwu Nosike
Plant Physiology
Plant Nutrition
Plant Stress Physiology
Cell Physiology
Metrics
H-Index
i10 Index
Citation
2
1
63
Nwaogaranya Uche Patrick
Plant Ecological Field Study and Plant Phenological Studies
Metrics
H-Index
i10 Index
Citation
2
0
10
Rankings
Ranking Based On Selection: 1
Mycology and Plant Pathology
Phytomedicine
Plant Microbiology
Aquatic Botany
Rankings
Ranking Based On Selection: 2
CV Ilodibia
Metrics
H-Index
i10 Index
Citation Counts
11
17
485
Rankings
Ranking Based On Selection: 3
Bibian Aziagba
Metrics
H-Index
i10 Index
Citation Counts
10
12
325
Rankings
Ranking Based On Selection: 4
Okereke Cn
Metrics
H-Index
i10 Index
Citation Counts
9
9
403
Plant Ecology
Medicinal Plants
Forestery
Agro-ecology
conservation of Ntural Resources
Rankings
Ranking Based On Selection: 5
Iroka, Chisom Finian
Metrics
H-Index
i10 Index
Citation Counts
9
9
311
Plant Taxonomy
plant anatomy
plant molecular biology
plant ecology and biodiversity
Rankings
Ranking Based On Selection: 6
Ezekwesili-Ofili Jo
Metrics
H-Index
i10 Index
Citation Counts
8
7
1,004
medicinal plant pharmacology and toxicology
cancer research
antioxidants
chemical and environmental toxicology
aflatoxins
Rankings
Ranking Based On Selection: 7
Anukwuorji Chidozie Azubuike
Metrics
H-Index
i10 Index
Citation Counts
8
5
182
Plant Pathology
Mycology
Botany
Mushroom Science
Aquatic Mycology
Rankings
Ranking Based On Selection: 8
Izundu A. I
Metrics
H-Index
i10 Index
Citation Counts
7
7
125
Rankings
Ranking Based On Selection: 10
Iwuagwu Christian Chukwunenye
Metrics
H-Index
i10 Index
Citation Counts
5
2
76

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Rankings
Ranking Based On Selection: 11
Obasi Chiamaka Chinasa|ONWUTEAKA CHIAMAKA CHINASA
Metrics
H-Index
i10 Index
Citation Counts
5
2
74
Rankings
Ranking Based On Selection: 12
Henry Okolie
Metrics
H-Index
i10 Index
Citation Counts
5
1
46
Rankings
Ranking Based On Selection: 13
Francis Chukwuma Onejeme
Metrics
H-Index
i10 Index
Citation Counts
4
2
51
Rankings
Ranking Based On Selection: 14
Mbaukwu Onyinye Ann
Metrics
H-Index
i10 Index
Citation Counts
4
1
57
Rankings
Ranking Based On Selection: 15
Ogechukwu Anulika Umeh
Metrics
H-Index
i10 Index
Citation Counts
3
1
37
Rankings
Ranking Based On Selection: 16
Go Ogbuozobe
Metrics
H-Index
i10 Index
Citation Counts
3
1
27
Rankings
Ranking Based On Selection: 17
Ofobeze Tochukwu Nosike
Metrics
H-Index
i10 Index
Citation Counts
2
1
63
Plant Physiology
Plant Nutrition
Plant Stress Physiology
Cell Physiology
Rankings
Ranking Based On Selection: 18
Nwaogaranya Uche Patrick
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
Plant Ecological Field Study and Plant Phenological Studies