Citation Rankings
Highly Cited Researchers

Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
Nigeria
John Akanni Oluwole Ojewole
Medical Sciences
Histopathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,107
2,554
0.315
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Nigeria
Babatunji E. Oyinloye
Phytomedicine & Biochemical Toxicology
Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,276
3,709
0.867
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Nigeria
Israel Olatunji Orubuloye
Demography
Medical Sociology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,957
395
0.100
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Nigeria
Ademola Adeyeye
General Surgery
GI/HPB/Endocrine Surgery
Oncology
Laparoscopy/Endoscopy
Medical Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,911
3,720
0.951
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Nigeria
Adeyinka Sikiru Yusuff
Catalysis
renewable energy
adsorption
wastewater management
material science and engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,040
2,929
0.963
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Nigeria
Oghenerobor Akpor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,851
1,963
0.689
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Nigeria
Abiodun Idowu Okunlola
Neurosurgery
Awake craniotomy
spine surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,619
2,608
0.996
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Nigeria
Oso B. A
research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,615
818
0.313
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Nigeria
Lekan Taofeek Popoola
Adsorption
Corrosion
Water Treatment
Environmental Engineering
Renewable energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,444
2,124
0.869
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Nigeria
Ayodeji Olalekan Salau
Image processing
Signal processing
Artificial Intelligence
Power Systems Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,424
2,413
0.995
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Nigeria
Bankole Ibrahim Oladapo
Biomedical
Mechatronics
Additive Manufacturing
Sustainable development
Bone Implant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,227
2,166
0.973
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Nigeria
IA Daniyan
Mechanical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,091
1,976
0.945
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Nigeria
Henry Abiyere
surgical oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,036
2,012
0.988
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Nigeria
Jeffrey Onuoma Oseh
Oil and Gas Drilling
Geothermal Well Drilling and Completion
Well production and Optimization
EOR
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,897
1,882
0.992
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Nigeria
Sola Olaniyi Ola
Medical
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,810
699
0.386
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Nigeria
Sylvester Ojo
Agricultural Production Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,792
713
0.398
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Nigeria
Kabir Adekunle Durowade
Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,590
1,123
0.706
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Nigeria
Idowu Adebara
Obstetrics and Gynaecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,513
1,410
0.932
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Nigeria
Akinola Akinmade
Hospital Administration
Orthopaedic surgery
Arthroplasty
Trauma
Sports medicine.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,511
1,508
0.998
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Nigeria
Joseph Olufemi Dada
Electrical Power Systems
Smart Grids
Multiscale Modelling and Simulation
Software Engineering
Computational Systems Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,431
705
0.493
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Nigeria
Ola Samuel Akinlabi
Geotechnical/ Geo-Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
530
0.384
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Nigeria
Paul Olowoyo
Stroke
Hypertension
Seizures
Cardiovascular Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,360
1,283
0.943
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Nigeria
Ojo Adebola Busola
Phytomedicine
Medical Biochemistry
Molecular Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,303
1,121
0.860
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Nigeria
Olusegun Busari
Hypertensiology
Cardiology
HIV/AIDS
Clinical Research
Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,296
661
0.510
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Nigeria
Ayorinde Margaret Adebola
Nephrology nursing
Preventive health
Self management of Mutiple Chronic diseses.management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,276
830
0.650
* Total Citation Counts Rankings
Rankings
124,872
Nigeria
59
1
Ranking Based On Selection: 1
John Akanni Oluwole Ojewole
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,107
2,554
0.315
* Total Citation Counts Rankings
Rankings
237,324
Nigeria
208
2
Ranking Based On Selection: 2
Babatunji E. Oyinloye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,276
3,709
0.867
Phytomedicine & Biochemical Toxicology
Biochemistry
* Total Citation Counts Rankings
Rankings
254,887
Nigeria
237
3
Ranking Based On Selection: 3
Israel Olatunji Orubuloye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,957
395
0.100
* Total Citation Counts Rankings
Rankings
257,531
Nigeria
245
4
Ranking Based On Selection: 4
Ademola Adeyeye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,911
3,720
0.951
General Surgery
GI/HPB/Endocrine Surgery
Oncology
Laparoscopy/Endoscopy
Medical Education
* Total Citation Counts Rankings
Rankings
319,180
Nigeria
381
5
Ranking Based On Selection: 5
Adeyinka Sikiru Yusuff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,040
2,929
0.963
Catalysis
renewable energy
adsorption
wastewater management
material science and engineering
* Total Citation Counts Rankings
Rankings
336,387
Nigeria
425
6
Ranking Based On Selection: 6
Oghenerobor Akpor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,851
1,963
0.689
* Total Citation Counts Rankings
Rankings
360,107
Nigeria
493
7
Ranking Based On Selection: 7
Abiodun Idowu Okunlola
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,619
2,608
0.996
* Total Citation Counts Rankings
Rankings
360,652
Nigeria
495
8
Ranking Based On Selection: 8
Oso B. A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,615
818
0.313
* Total Citation Counts Rankings
Rankings
379,881
Nigeria
560
9
Ranking Based On Selection: 9
Lekan Taofeek Popoola
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,444
2,124
0.869
Adsorption
Corrosion
Water Treatment
Environmental Engineering
Renewable energy
* Total Citation Counts Rankings
Rankings
382,179
Nigeria
567
10
Ranking Based On Selection: 10
Ayodeji Olalekan Salau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,424
2,413
0.995
Image processing
Signal processing
Artificial Intelligence
Power Systems Engineering
* Total Citation Counts Rankings
Rankings
407,277
Nigeria
643
11
Ranking Based On Selection: 11
Bankole Ibrahim Oladapo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,227
2,166
0.973
Biomedical
Mechatronics
Additive Manufacturing
Sustainable development
Bone Implant
* Total Citation Counts Rankings
Rankings
426,693
Nigeria
708
12
Ranking Based On Selection: 12
IA Daniyan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,091
1,976
0.945
* Total Citation Counts Rankings
Rankings
435,075
Nigeria
735
13
Ranking Based On Selection: 13
Henry Abiyere
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,036
2,012
0.988
* Total Citation Counts Rankings
Rankings
457,484
Nigeria
849
14
Ranking Based On Selection: 14
Jeffrey Onuoma Oseh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,897
1,882
0.992
Oil and Gas Drilling
Geothermal Well Drilling and Completion
Well production and Optimization
EOR
* Total Citation Counts Rankings
Rankings
472,586
Nigeria
913
15
Ranking Based On Selection: 15
Sola Olaniyi Ola
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,810
699
0.386
* Total Citation Counts Rankings
Rankings
475,820
Nigeria
928
16
Ranking Based On Selection: 16
Sylvester Ojo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,792
713
0.398
* Total Citation Counts Rankings
Rankings
515,859
Nigeria
1,086
17
Ranking Based On Selection: 17
Kabir Adekunle Durowade
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,590
1,123
0.706
* Total Citation Counts Rankings
Rankings
532,521
Nigeria
1,184
18
Ranking Based On Selection: 18
Idowu Adebara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,513
1,410
0.932
* Total Citation Counts Rankings
Rankings
532,942
Nigeria
1,187
19
Ranking Based On Selection: 19
Akinola Akinmade
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,511
1,508
0.998
Hospital Administration
Orthopaedic surgery
Arthroplasty
Trauma
Sports medicine.
* Total Citation Counts Rankings
Rankings
551,569
Nigeria
1,294
20
Ranking Based On Selection: 20
Joseph Olufemi Dada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,431
705
0.493
Electrical Power Systems
Smart Grids
Multiscale Modelling and Simulation
Software Engineering
Computational Systems Biology
* Total Citation Counts Rankings
Rankings
564,149
Nigeria
1,354
21
Ranking Based On Selection: 21
Ola Samuel Akinlabi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
530
0.384
* Total Citation Counts Rankings
Rankings
569,030
Nigeria
1,386
22
Ranking Based On Selection: 22
Paul Olowoyo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,360
1,283
0.943
Stroke
Hypertension
Seizures
Cardiovascular Diseases
* Total Citation Counts Rankings
Rankings
584,048
Nigeria
1,464
23
Ranking Based On Selection: 23
Ojo Adebola Busola
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,303
1,121
0.860
Phytomedicine
Medical Biochemistry
Molecular Toxicology
* Total Citation Counts Rankings
Rankings
586,078
Nigeria
1,474
24
Ranking Based On Selection: 24
Olusegun Busari
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,296
661
0.510
Hypertensiology
Cardiology
HIV/AIDS
Clinical Research
Immunology
* Total Citation Counts Rankings
Rankings
591,433
Nigeria
1,499
25
Ranking Based On Selection: 25
Ayorinde Margaret Adebola
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,276
830
0.650
Nephrology nursing
Preventive health
Self management of Mutiple Chronic diseses.management