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 :2
George Obozokhale Akpede
Pediatric neurology and infectious diseases
viral hemorrhagic fevers
acute central nervous system infections
acute care neuro
Metrics
H-Index
i10 Index
Citation
31
59
3,239
* Rankings
Ranking Based On Selection :5
Alhaji A Aliyu
Environmental health and sustainable development
Urbanization and urban health
Climate change and public health
Maternal/Repr
Metrics
H-Index
i10 Index
Citation
25
40
2,304
* Rankings
Ranking Based On Selection :6
ADEOLA FOWOTADE
Clinical Virology
Clinical Microbiology and Emerging Infectious diseases
Metrics
H-Index
i10 Index
Citation
21
42
2,034
* Rankings
Ranking Based On Selection :8
Bello Ibrahim Sebutu
Malaria.
HiV
Hypertension and Diabetes
Family Medicine
Primary Health Care
Metrics
H-Index
i10 Index
Citation
19
27
1,405
* Rankings
Ranking Based On Selection :10
Gabriel Uche Pascal Iloh
Family Medicine
Public Health
Primary Care
Epidemiology
Hospital Administration
Metrics
H-Index
i10 Index
Citation
19
40
1,391
* Rankings
Ranking Based On Selection :16
Bukunmi Michael Idowu
Radiology Imaging
Ultrasonography
Medical History
Medical Education
Nigeria
Metrics
H-Index
i10 Index
Citation
17
22
640
* Rankings
Ranking Based On Selection :17
Oluwagbemiga Ayoola
Doppler ultrasonography
sickle cell disease
Metrics
H-Index
i10 Index
Citation
17
24
818
* Rankings
Ranking Based On Selection :18
Andrew Ugwunna Ukegbu
epidemiology
maternal and child health
environmental health
Metrics
H-Index
i10 Index
Citation
17
20
922
* Rankings
Ranking Based On Selection :19
Clement Abu Okolo
Genitourinary and Gynecologic
Pathology Cytopathology
Forensic Pathology
Metrics
H-Index
i10 Index
Citation
17
32
980
* Rankings
Ranking Based On Selection :21
soje michael
Cardiovascular Disease in CKD and Biomarkers of Acute and Chronic kidney Disease
Metrics
H-Index
i10 Index
Citation
16
20
915
* Rankings
Ranking Based On Selection :27
Muhammed Ahmed
General Urology
endourology
urologic oncology and andrology
Metrics
H-Index
i10 Index
Citation
14
18
1,177
* Rankings
Ranking Based On Selection :30
Salami Suberu Sule
Medical Education
Health Policy
Healthcare Management and Health Economics
Health Systems Research: Research and Clinical Gov
Metrics
H-Index
i10 Index
Citation
14
15
740
* Rankings
Ranking Based On Selection :31
Abdulmumini Hassan Rafindadi
Forensic pathology
General pathology
Histopathology
Postmortem examination
Metrics
H-Index
i10 Index
Citation
14
20
558
* Rankings
Ranking Based On Selection :32
Paul Dienye
Rural and remote health
primary care
lifestyle
surgical practice
Metrics
H-Index
i10 Index
Citation
13
17
781
* Rankings
Ranking Based On Selection :40
Ugochukwu Chinyem Madubueze
public Health
Health Education and Promotion
Epidemiology
Maternal and Child
Adolescent Health
Metrics
H-Index
i10 Index
Citation
11
11
463
* Rankings
Ranking Based On Selection :46
MARTIN IGBOKWE
Endo-urology
Kidney transplantation
Uro-oncology
Residency training
Metrics
H-Index
i10 Index
Citation
10
12
340
* Rankings
Ranking Based On Selection :47
Dr Cyril Oshomah Erameh
Neurology
Infectious Diseases
Virology
Viral Hemorrhagic Fevers
Clinical Trials
Metrics
H-Index
i10 Index
Citation
10
11
624
* Rankings
Ranking Based On Selection :56
Mary Osuh|Mary Ebelechukwu Osuh
Oral health
LMICs
Disadvantaged/ Slum settings
Dental health services provision and uptake
Metrics
H-Index
i10 Index
Citation
9
9
681
* Rankings
Ranking Based On Selection :61
Babatunde Olaniyan Akintunde
Primary Health Care
Field Epidemiology
Medical Statistics
Metrics
H-Index
i10 Index
Citation
9
8
201
* Rankings
Ranking Based On Selection :62
Ahmadu Baba Usman|Baba Usman ahmadu, Usman Ahmadu Baba, Baba UA
paediatrics/genetics
infectious disease
nutrition
public health
health economics.
Metrics
H-Index
i10 Index
Citation
9
8
264
Saidu Ibrahim|Sabi Ibrahim
Urogynaecology
OBGYN ultrasonography
Gynaecological endocrinology
Metrics
H-Index
i10 Index
Citation
8
8
934
Adeyemi Temitayo Adeyemo
Antimicrobial Resistance
Antimicrobial Stewardship
Anaerobic Bacteriology
Inf. Prev. & Control
Metrics
H-Index
i10 Index
Citation
8
7
196
Mojeed Olaitan Rafiu
Internal Medicine
Nephrology
Lassa fever and Emerging Infectious Diseases
Metrics
H-Index
i10 Index
Citation
8
7
589
Attah Raphael Avidime
Infertility
fetomaternal Medicine
Endoscopic surgery
Metrics
H-Index
i10 Index
Citation
8
6
218
Oseihie Iribhogbe
Reproductive health
maternal health
implementation research
Metrics
H-Index
i10 Index
Citation
7
7
534
Chike John Okeke
General Urology
Endourology
Stone disease
Health Policy and Management
Surgical Education
Metrics
H-Index
i10 Index
Citation
7
6
141
Iheanacho Samuel Nwadioha
Scientific researching
Aerobics
Christian activities
Metrics
H-Index
i10 Index
Citation
7
7
186
victor wakwe
Chemical Pathology
ClinicaL Biochemistry
Metabolism
Nutrition
Biochemical Markers
Metrics
H-Index
i10 Index
Citation
7
6
277
Oluwarotimi Bolaji Olopade
Diabetes epidemiology
cardiovascular and Nutrition
Thyroid
reproductive endocrinology
Neuroendocrinology and endocrine hyper
Metrics
H-Index
i10 Index
Citation
7
4
135
Mansur Aliyu Ramalan
Epidemiology of type 2 diabetes
Obesity
Clinical pharamacology
Pharmacoepidemiology
Metrics
H-Index
i10 Index
Citation
6
5
513
Oluomachi Nnachi
Haemoglobinopathy
Blood Transfusion
oncology and Hospital services
Metrics
H-Index
i10 Index
Citation
6
3
136
Rankings
Ranking Based On Selection: 1
Aishatu Yusha'u Armiya'u
Metrics
H-Index
i10 Index
Citation Counts
31
92
4,136
Rankings
Ranking Based On Selection: 2
George Obozokhale Akpede
Metrics
H-Index
i10 Index
Citation Counts
31
59
3,239
Pediatric neurology and infectious diseases
viral hemorrhagic fevers
acute central nervous system infections
acute care neuro
Rankings
Ranking Based On Selection: 4
Mohammed bukar
Metrics
H-Index
i10 Index
Citation Counts
26
35
1,615
Rankings
Ranking Based On Selection: 5
Alhaji A Aliyu
Metrics
H-Index
i10 Index
Citation Counts
25
40
2,304
Environmental health and sustainable development
Urbanization and urban health
Climate change and public health
Maternal/Repr
Rankings
Ranking Based On Selection: 6
ADEOLA FOWOTADE
Metrics
H-Index
i10 Index
Citation Counts
21
42
2,034
Clinical Virology
Clinical Microbiology and Emerging Infectious diseases
Rankings
Ranking Based On Selection: 7
Akinyele .O. Adisa
Metrics
H-Index
i10 Index
Citation Counts
21
43
1,615
Rankings
Ranking Based On Selection: 8
Bello Ibrahim Sebutu
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,405
Malaria.
HiV
Hypertension and Diabetes
Family Medicine
Primary Health Care
Rankings
Ranking Based On Selection: 9
Amobi Ilika
Metrics
H-Index
i10 Index
Citation Counts
19
34
1,455
Rankings
Ranking Based On Selection: 10
Gabriel Uche Pascal Iloh
Metrics
H-Index
i10 Index
Citation Counts
19
40
1,391
Family Medicine
Public Health
Primary Care
Epidemiology
Hospital Administration
Rankings
Ranking Based On Selection: 11
Po Olatunji
Metrics
H-Index
i10 Index
Citation Counts
19
28
903
Rankings
Ranking Based On Selection: 12
Elizabeth Adebola Campbell
Metrics
H-Index
i10 Index
Citation Counts
19
22
1,954
Rankings
Ranking Based On Selection: 14
OLUWOLE ATOYEBI
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,759
Rankings
Ranking Based On Selection: 15
Oluwatoyin Helen Onakpoya
Metrics
H-Index
i10 Index
Citation Counts
18
24
869
Rankings
Ranking Based On Selection: 16
Bukunmi Michael Idowu
Metrics
H-Index
i10 Index
Citation Counts
17
22
640
Radiology Imaging
Ultrasonography
Medical History
Medical Education
Nigeria
Rankings
Ranking Based On Selection: 17
Oluwagbemiga Ayoola
Metrics
H-Index
i10 Index
Citation Counts
17
24
818
Doppler ultrasonography
sickle cell disease
Rankings
Ranking Based On Selection: 18
Andrew Ugwunna Ukegbu
Metrics
H-Index
i10 Index
Citation Counts
17
20
922
epidemiology
maternal and child health
environmental health
Rankings
Ranking Based On Selection: 19
Clement Abu Okolo
Metrics
H-Index
i10 Index
Citation Counts
17
32
980
Genitourinary and Gynecologic
Pathology Cytopathology
Forensic Pathology
Rankings
Ranking Based On Selection: 20
philip abiodun
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,200
Rankings
Ranking Based On Selection: 21
soje michael
Metrics
H-Index
i10 Index
Citation Counts
16
20
915
Cardiovascular Disease in CKD and Biomarkers of Acute and Chronic kidney Disease
Rankings
Ranking Based On Selection: 24
Emmanuel OJO
Metrics
H-Index
i10 Index
Citation Counts
15
25
659
Rankings
Ranking Based On Selection: 26
Gynaecology oncology Obstetrics
Assisted conception
Minimal access surgery
Rankings
Ranking Based On Selection: 27
Muhammed Ahmed
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,177
General Urology
endourology
urologic oncology and andrology
Rankings
Ranking Based On Selection: 28
MONDAY IGWE
Metrics
H-Index
i10 Index
Citation Counts
14
18
991
Rankings
Ranking Based On Selection: 29
dike obalum
Metrics
H-Index
i10 Index
Citation Counts
14
18
782
Rankings
Ranking Based On Selection: 30
Salami Suberu Sule
Metrics
H-Index
i10 Index
Citation Counts
14
15
740
Medical Education
Health Policy
Healthcare Management and Health Economics
Health Systems Research: Research and Clinical Gov
Rankings
Ranking Based On Selection: 31
Abdulmumini Hassan Rafindadi
Metrics
H-Index
i10 Index
Citation Counts
14
20
558
Forensic pathology
General pathology
Histopathology
Postmortem examination
Rankings
Ranking Based On Selection: 32
Paul Dienye
Metrics
H-Index
i10 Index
Citation Counts
13
17
781
Rural and remote health
primary care
lifestyle
surgical practice
Rankings
Ranking Based On Selection: 33
Neuro-Trauma and Peadiatrics Neurosurgery
Rankings
Ranking Based On Selection: 34
Sadiq Adamu
Metrics
H-Index
i10 Index
Citation Counts
13
15
429
Rankings
Ranking Based On Selection: 35
Halima Abubakar Ibrahim
Metrics
H-Index
i10 Index
Citation Counts
12
15
523
Neonatal respiratory support
neonatal infections
Rankings
Ranking Based On Selection: 37
Ita B. Okokon
Metrics
H-Index
i10 Index
Citation Counts
12
13
714
hospital medicine
geriatrics
occupational medicine
Rankings
Ranking Based On Selection: 38
elizabeth bosede dosumu
Metrics
H-Index
i10 Index
Citation Counts
12
15
496
Rankings
Ranking Based On Selection: 40
Ugochukwu Chinyem Madubueze
Metrics
H-Index
i10 Index
Citation Counts
11
11
463
public Health
Health Education and Promotion
Epidemiology
Maternal and Child
Adolescent Health
Rankings
Ranking Based On Selection: 41
Yusufu Lazarus Mungu
Metrics
H-Index
i10 Index
Citation Counts
11
14
810
Rankings
Ranking Based On Selection: 42
Joseph Eigbefoh
Metrics
H-Index
i10 Index
Citation Counts
11
13
714
Rankings
Ranking Based On Selection: 43
Haematology and Blood Transfusion
HIV/AIDS
Haemato-oncology
Rankings
Ranking Based On Selection: 44
Anyabolu, Ernest Ndukaife
Metrics
H-Index
i10 Index
Citation Counts
11
11
387
Rankings
Ranking Based On Selection: 46
MARTIN IGBOKWE
Metrics
H-Index
i10 Index
Citation Counts
10
12
340
Endo-urology
Kidney transplantation
Uro-oncology
Residency training
Rankings
Ranking Based On Selection: 47
Dr Cyril Oshomah Erameh
Metrics
H-Index
i10 Index
Citation Counts
10
11
624
Neurology
Infectious Diseases
Virology
Viral Hemorrhagic Fevers
Clinical Trials
Rankings
Ranking Based On Selection: 48
Bilal Sulaiman
Metrics
H-Index
i10 Index
Citation Counts
10
10
979
Rankings
Ranking Based On Selection: 50
Jude E. Okohue
Metrics
H-Index
i10 Index
Citation Counts
10
10
469
Fertility and Endoscopy (MAS)
Rankings
Ranking Based On Selection: 51
Amechi Uchenna Katchy
Metrics
H-Index
i10 Index
Citation Counts
10
11
308
Rankings
Ranking Based On Selection: 52
Ezenwa Ekene Victor
Metrics
H-Index
i10 Index
Citation Counts
10
10
733
Rankings
Ranking Based On Selection: 54
Samuel Oluyomi Ayodele
Metrics
H-Index
i10 Index
Citation Counts
10
11
407
Otology
Rhinology
Laryngology
Nasoendoscopy
Head and Neck Surgery
Rankings
Ranking Based On Selection: 56
Mary Osuh|Mary Ebelechukwu Osuh
Metrics
H-Index
i10 Index
Citation Counts
9
9
681
Oral health
LMICs
Disadvantaged/ Slum settings
Dental health services provision and uptake
Rankings
Ranking Based On Selection: 57
Obehi Akoria
Metrics
H-Index
i10 Index
Citation Counts
9
9
294
Geriatrics
Internal Medicine
Clinical Pharmacology & Therapeutics
Rankings
Ranking Based On Selection: 58
Adeniyi Makinde Adebayo
Metrics
H-Index
i10 Index
Citation Counts
9
8
275
Rankings
Ranking Based On Selection: 59
Adegbayi Adeola Adekunle
Metrics
H-Index
i10 Index
Citation Counts
9
7
227
Oral and Maxillofacial Surgery
Cleft Lip and Palate
Rankings
Ranking Based On Selection: 60
Musbahu Sani Kurawa
Metrics
H-Index
i10 Index
Citation Counts
9
9
957
Rankings
Ranking Based On Selection: 61
Babatunde Olaniyan Akintunde
Metrics
H-Index
i10 Index
Citation Counts
9
8
201
Primary Health Care
Field Epidemiology
Medical Statistics
Rankings
Ranking Based On Selection: 62
paediatrics/genetics
infectious disease
nutrition
public health
health economics.
Rankings
Ranking Based On Selection: 63
Hannah E. Omunakwe
Metrics
H-Index
i10 Index
Citation Counts
9
6
370
Rankings
Ranking Based On Selection: 64
Saidu Ibrahim|Sabi Ibrahim
Metrics
H-Index
i10 Index
Citation Counts
8
8
934
Urogynaecology
OBGYN ultrasonography
Gynaecological endocrinology
Rankings
Ranking Based On Selection: 65
Tajudeen Abiola
Metrics
H-Index
i10 Index
Citation Counts
8
8
807
Rankings
Ranking Based On Selection: 66
Adeyinka Ayodele Adejumo
Metrics
H-Index
i10 Index
Citation Counts
8
8
313
General surgery
Endocrine surgery
Minimal access
Oncology
Rankings
Ranking Based On Selection: 68
Chimaobi Nnaji
Metrics
H-Index
i10 Index
Citation Counts
8
7
923
Rankings
Ranking Based On Selection: 69
Pantong Mark Davwar
Metrics
H-Index
i10 Index
Citation Counts
8
7
544
Liver cancer viral hepatitis
Rankings
Ranking Based On Selection: 70
Adeyemi Temitayo Adeyemo
Metrics
H-Index
i10 Index
Citation Counts
8
7
196
Antimicrobial Resistance
Antimicrobial Stewardship
Anaerobic Bacteriology
Inf. Prev. & Control
Rankings
Ranking Based On Selection: 72
İgbodike Emeka
Metrics
H-Index
i10 Index
Citation Counts
8
4
184
Rankings
Ranking Based On Selection: 73
Osagbemiro BB
Metrics
H-Index
i10 Index
Citation Counts
8
8
410
Rankings
Ranking Based On Selection: 74
Richard Nnabuko
Metrics
H-Index
i10 Index
Citation Counts
8
7
764
Rankings
Ranking Based On Selection: 75
Mojeed Olaitan Rafiu
Metrics
H-Index
i10 Index
Citation Counts
8
7
589
Internal Medicine
Nephrology
Lassa fever and Emerging Infectious Diseases
Rankings
Ranking Based On Selection: 76
Abiodun Olusesi
Metrics
H-Index
i10 Index
Citation Counts
8
7
257
Otology
Hearing Rehabilitation
Vertigo and Balance Disorders
Rankings
Ranking Based On Selection: 77
Attah Raphael Avidime
Metrics
H-Index
i10 Index
Citation Counts
8
6
218
Infertility
fetomaternal Medicine
Endoscopic surgery
Rankings
Ranking Based On Selection: 78
Oseihie Iribhogbe
Metrics
H-Index
i10 Index
Citation Counts
7
7
534
Reproductive health
maternal health
implementation research
Rankings
Ranking Based On Selection: 79
Aisha Mustapha
Metrics
H-Index
i10 Index
Citation Counts
7
7
253
Rankings
Ranking Based On Selection: 80
Adetokunbo Olawuyi
Metrics
H-Index
i10 Index
Citation Counts
7
7
228
Rankings
Ranking Based On Selection: 82
Chike John Okeke
Metrics
H-Index
i10 Index
Citation Counts
7
6
141
General Urology
Endourology
Stone disease
Health Policy and Management
Surgical Education
Rankings
Ranking Based On Selection: 83
Helen O. Akhiwu
Metrics
H-Index
i10 Index
Citation Counts
7
5
157
Rankings
Ranking Based On Selection: 84
Iheanacho Samuel Nwadioha
Metrics
H-Index
i10 Index
Citation Counts
7
7
186
Scientific researching
Aerobics
Christian activities
Rankings
Ranking Based On Selection: 85
victor wakwe
Metrics
H-Index
i10 Index
Citation Counts
7
6
277
Chemical Pathology
ClinicaL Biochemistry
Metabolism
Nutrition
Biochemical Markers
Rankings
Ranking Based On Selection: 87
Oluwarotimi Bolaji Olopade
Metrics
H-Index
i10 Index
Citation Counts
7
4
135
Diabetes epidemiology
cardiovascular and Nutrition
Thyroid
reproductive endocrinology
Neuroendocrinology and endocrine hyper
Rankings
Ranking Based On Selection: 88
Festus Iyare Ehigiator
Metrics
H-Index
i10 Index
Citation Counts
7
4
670
Rankings
Ranking Based On Selection: 90
Nasiru Raheem
Metrics
H-Index
i10 Index
Citation Counts
6
5
1,026
Rankings
Ranking Based On Selection: 91
Mansur Aliyu Ramalan
Metrics
H-Index
i10 Index
Citation Counts
6
5
513
Epidemiology of type 2 diabetes
Obesity
Clinical pharamacology
Pharmacoepidemiology
Rankings
Ranking Based On Selection: 94
Jamila Abubakar Garba
Metrics
H-Index
i10 Index
Citation Counts
6
4
121
Rankings
Ranking Based On Selection: 95
Emmanuel Owie
Metrics
H-Index
i10 Index
Citation Counts
6
4
120
Rankings
Ranking Based On Selection: 96
Esala Ezekiel Abene
Metrics
H-Index
i10 Index
Citation Counts
6
4
81
Chronic kidney disease
HIV
Hypertension
Dialysis
Rankings
Ranking Based On Selection: 97
Oluomachi Nnachi
Metrics
H-Index
i10 Index
Citation Counts
6
3
136
Haemoglobinopathy
Blood Transfusion
oncology and Hospital services
Rankings
Ranking Based On Selection: 98
Obstetrics and Gynaecology
Reproductive Health
Public Health
Quality improvement
Rankings
Ranking Based On Selection: 99
Usman Muhammad Ibrahim
Metrics
H-Index
i10 Index
Citation Counts
6
1
116
Occupational and Environmental Health
Rankings
Ranking Based On Selection: 100
Ibanga Ekong
Metrics
H-Index
i10 Index
Citation Counts
6
5
346