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" (870,057 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
Joseph Ikechebelu
Gynecological Endoscopy
Infertility & Assisted Reproduction
PMTCT.
Metrics
H-Index
i10 Index
Citation
34
86
5,215
* Rankings
Ranking Based On Selection: 2
George Eleje
Preterm birth
Premature Rupture of membranes
Gynae-oncology
Evidence based Medicine
Metrics
H-Index
i10 Index
Citation
29
75
3,076
* Rankings
Ranking Based On Selection: 5
Ikechukwu Innocent Mbachu
Fetomaternal Medicine
Reproductive Health
Obstetrics and Gynaecology
Metrics
H-Index
i10 Index
Citation
14
19
746
OC Ikpeze
Obstetrics and Gynaecology
Fertility
Ultrasound
Medical Education
Metrics
H-Index
i10 Index
Citation
9
8
273
Boniface Chukwuneme Okpala
Assisted reproduction
Evidence based medicine
Gynecological endoscopy
infertility
Metrics
H-Index
i10 Index
Citation
8
8
272
Victor Nwabunwanne Oguaka
Obstetrics & Gynaecology
Biochemistry (Xenobiochemistry & Toxicology)
Metrics
H-Index
i10 Index
Citation
7
3
193
Malarchy Ec Nwankwo
Obstetrics and Gynaecology
Reproductive Endocrinology and Infertilty
ART
Metrics
H-Index
i10 Index
Citation
4
1
40

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Rankings
Ranking Based On Selection: 1
Joseph Ikechebelu
Metrics
H-Index
i10 Index
Citation Counts
34
86
5,215
Gynecological Endoscopy
Infertility & Assisted Reproduction
PMTCT.
Rankings
Ranking Based On Selection: 2
George Eleje
Metrics
H-Index
i10 Index
Citation Counts
29
75
3,076
Preterm birth
Premature Rupture of membranes
Gynae-oncology
Evidence based Medicine
Rankings
Ranking Based On Selection: 3
Joseph Adinma
Metrics
H-Index
i10 Index
Citation Counts
24
50
2,173
Rankings
Ranking Based On Selection: 4
Charles Okafor
Metrics
H-Index
i10 Index
Citation Counts
15
25
989
Rankings
Ranking Based On Selection: 5
Ikechukwu Innocent Mbachu
Metrics
H-Index
i10 Index
Citation Counts
14
19
746
Fetomaternal Medicine
Reproductive Health
Obstetrics and Gynaecology
Rankings
Ranking Based On Selection: 6
Charlotte B. Oguejiofor
Metrics
H-Index
i10 Index
Citation Counts
9
9
401
Rankings
Ranking Based On Selection: 7
OC Ikpeze
Metrics
H-Index
i10 Index
Citation Counts
9
8
273
Obstetrics and Gynaecology
Fertility
Ultrasound
Medical Education
Rankings
Ranking Based On Selection: 8
Boniface Chukwuneme Okpala
Metrics
H-Index
i10 Index
Citation Counts
8
8
272
Assisted reproduction
Evidence based medicine
Gynecological endoscopy
infertility
Rankings
Ranking Based On Selection: 9
Victor Nwabunwanne Oguaka
Metrics
H-Index
i10 Index
Citation Counts
7
3
193
Obstetrics & Gynaecology
Biochemistry (Xenobiochemistry & Toxicology)
Rankings
Ranking Based On Selection: 10
Malarchy Ec Nwankwo
Metrics
H-Index
i10 Index
Citation Counts
4
1
40
Obstetrics and Gynaecology
Reproductive Endocrinology and Infertilty
ART

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Onyecherelam Monday Ogelle
Metrics
H-Index
i10 Index
Citation Counts
4
1
40