Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 592 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025

The Citation Rankings (Highly Cited Researchers) list 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.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Nigeria
Chibundu N. Ezekiel
Food microbiology
Food safety
Fungal taxonomy
Mycotoxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,614
4,170
0.743
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Nigeria
Patrick Okwute
Cardio-metabolic physiology
chronobiology
molecular biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,821
2,799
0.992
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Nigeria
Olumide A Abiodun
Reproductive Health
Epidemiology
Adolescent Health
Mental Health
Clinical Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,676
2,275
0.850
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Nigeria
Awodele Oludele
Artificial Intelligence
Data Communication and Information Security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,971
1,831
0.616
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Nigeria
Onakoya Adegbemi Babatunde
Economics
Accounting and Finance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,385
1,488
0.624
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Nigeria
Asikhia Olalekan
Management
Marketing and Entrepreneurship
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,060
1,396
0.678
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Nigeria
Adegbie Folajimi Festus
Accounting and Taxation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,691
1,367
0.808
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Nigeria
Okwu Andy T.
International Economics
Macroeconomics
Financial Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,055
1,050
0.511
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Nigeria
Olajumoke Yacob-Haliso
Political Science/IR
Women's & Gender Studies
Refugee Studies
African Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,091
1,035
0.949
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Nigeria
Nwangburuka Cyril
Agriculture
genetics
plant breeding
biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,567
1,031
0.658
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Nigeria
Owolabi Sunday
Corporate Governance
Financial Management and Public Sector Accounting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,847
1,019
0.552
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Nigeria
John Sotunsa
Hypertensive disease in pregnancy
perinatal mental health
gynaecological oncology and medical missions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,478
1,017
0.688
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Nigeria
Ogechukwu C. Taiwo
Surgery
Paediatric Surgery
Medical/Surgical Education
Child Health
Psychology of Children and Young People
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,272
997
0.784
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Nigeria
Olayiwola Kehinde Olawunmi
Epidemiologist
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
927
919
0.991
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Nigeria
Enitan, Seyi Samson
Medical Microbiology
Immunology
Virology
HIV and Medicinal Plants Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,041
913
0.877
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Nigeria
Akpa Victoria
Human Resources Management
Organizational Behaviour
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,476
880
0.596
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Nigeria
Kolawole Ayeni
Food Microbiology
Mycotoxin
Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
882
838
0.950
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Nigeria
Afolashade Kuyoro|Shade Kuyoro
Artificial Intelligence –Data Mining
Machine Learning
Big Data
Networking -Cloud Computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,606
832
0.518
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Nigeria
Titus Oyedele
Paediatric Dentistry
Cariology
MIH
Developmental defects of enamel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,312
829
0.632
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Nigeria
Godswill N. Anyasor
Drug Biochemistry
Drug discovery
Toxicology
Pharmacological Biochemistry
Membrane and Lipid Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,515
787
0.519
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Nigeria
Agboola Taiwo
Orthopaedic surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
965
779
0.807
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Nigeria
Olufunmiso Olusola Olajuyigbe
Medical and Pharmaceutical Microbiology
Ethnobotany/Phytomedicine
Bacteriology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,446
772
0.534
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Nigeria
Onuoha Clement Enyinnaya Omenihu
General Surgery
Paediatric Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
887
759
0.856
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Nigeria
Kenechukwu Chinemelum Uche-Okonkwo
Otorhinolaryngology
Head and Neck Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
714
710
0.994
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Nigeria
Grace Ogundajo
ASSOCIATE PROFESSOR OF ACCOUNTING
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
799
688
0.861
* Last 6 Years Citation Counts Rankings
Rankings
105,165
Nigeria
102
1
Ranking Based On Selection: 1
Chibundu N. Ezekiel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,614
4,170
0.743
Food microbiology
Food safety
Fungal taxonomy
Mycotoxicology
* Last 6 Years Citation Counts Rankings
Rankings
168,254
Nigeria
206
2
Ranking Based On Selection: 2
Patrick Okwute
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,821
2,799
0.992
Cardio-metabolic physiology
chronobiology
molecular biology
* Last 6 Years Citation Counts Rankings
Rankings
210,726
Nigeria
299
3
Ranking Based On Selection: 3
Olumide A Abiodun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,676
2,275
0.850
Reproductive Health
Epidemiology
Adolescent Health
Mental Health
Clinical Research
* Last 6 Years Citation Counts Rankings
Rankings
262,802
Nigeria
436
4
Ranking Based On Selection: 4
Awodele Oludele
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,971
1,831
0.616
Artificial Intelligence
Data Communication and Information Security
* Last 6 Years Citation Counts Rankings
Rankings
319,864
Nigeria
586
5
Ranking Based On Selection: 5
Onakoya Adegbemi Babatunde
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,385
1,488
0.624
* Last 6 Years Citation Counts Rankings
Rankings
338,858
Nigeria
636
6
Ranking Based On Selection: 6
Asikhia Olalekan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,060
1,396
0.678
* Last 6 Years Citation Counts Rankings
Rankings
345,103
Nigeria
667
7
Ranking Based On Selection: 7
Adegbie Folajimi Festus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,691
1,367
0.808
* Last 6 Years Citation Counts Rankings
Rankings
429,473
Nigeria
980
8
Ranking Based On Selection: 8
Okwu Andy T.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,055
1,050
0.511
International Economics
Macroeconomics
Financial Economics
* Last 6 Years Citation Counts Rankings
Rankings
434,513
Nigeria
1,010
9
Ranking Based On Selection: 9
Olajumoke Yacob-Haliso
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,091
1,035
0.949
Political Science/IR
Women's & Gender Studies
Refugee Studies
African Studies
* Last 6 Years Citation Counts Rankings
Rankings
435,717
Nigeria
1,016
10
Ranking Based On Selection: 10
Nwangburuka Cyril
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,567
1,031
0.658
Agriculture
genetics
plant breeding
biotechnology
* Last 6 Years Citation Counts Rankings
Rankings
439,671
Nigeria
1,039
11
Ranking Based On Selection: 11
Owolabi Sunday
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,847
1,019
0.552
Corporate Governance
Financial Management and Public Sector Accounting
* Last 6 Years Citation Counts Rankings
Rankings
440,385
Nigeria
1,046
12
Ranking Based On Selection: 12
John Sotunsa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,478
1,017
0.688
Hypertensive disease in pregnancy
perinatal mental health
gynaecological oncology and medical missions
* Last 6 Years Citation Counts Rankings
Rankings
447,245
Nigeria
1,088
13
Ranking Based On Selection: 13
Ogechukwu C. Taiwo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,272
997
0.784
Surgery
Paediatric Surgery
Medical/Surgical Education
Child Health
Psychology of Children and Young People
* Last 6 Years Citation Counts Rankings
Rankings
475,059
Nigeria
1,242
14
Ranking Based On Selection: 14
Olayiwola Kehinde Olawunmi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
927
919
0.991
* Last 6 Years Citation Counts Rankings
Rankings
477,329
Nigeria
1,256
15
Ranking Based On Selection: 15
Enitan, Seyi Samson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,041
913
0.877
Medical Microbiology
Immunology
Virology
HIV and Medicinal Plants Research
* Last 6 Years Citation Counts Rankings
Rankings
490,168
Nigeria
1,336
16
Ranking Based On Selection: 16
Akpa Victoria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,476
880
0.596
* Last 6 Years Citation Counts Rankings
Rankings
507,580
Nigeria
1,462
17
Ranking Based On Selection: 17
Kolawole Ayeni
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
882
838
0.950
* Last 6 Years Citation Counts Rankings
Rankings
509,941
Nigeria
1,474
18
Ranking Based On Selection: 18
Afolashade Kuyoro|Shade Kuyoro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,606
832
0.518
Artificial Intelligence –Data Mining
Machine Learning
Big Data
Networking -Cloud Computing
* Last 6 Years Citation Counts Rankings
Rankings
511,348
Nigeria
1,488
19
Ranking Based On Selection: 19
Titus Oyedele
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,312
829
0.632
Paediatric Dentistry
Cariology
MIH
Developmental defects of enamel
* Last 6 Years Citation Counts Rankings
Rankings
529,905
Nigeria
1,607
20
Ranking Based On Selection: 20
Godswill N. Anyasor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,515
787
0.519
Drug Biochemistry
Drug discovery
Toxicology
Pharmacological Biochemistry
Membrane and Lipid Biochemistry
* Last 6 Years Citation Counts Rankings
Rankings
533,852
Nigeria
1,632
21
Ranking Based On Selection: 21
Agboola Taiwo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
965
779
0.807
* Last 6 Years Citation Counts Rankings
Rankings
537,010
Nigeria
1,654
22
Ranking Based On Selection: 22
Olufunmiso Olusola Olajuyigbe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,446
772
0.534
Medical and Pharmaceutical Microbiology
Ethnobotany/Phytomedicine
Bacteriology
* Last 6 Years Citation Counts Rankings
Rankings
543,379
Nigeria
1,695
23
Ranking Based On Selection: 23
Onuoha Clement Enyinnaya Omenihu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
887
759
0.856
* Last 6 Years Citation Counts Rankings
Rankings
567,432
Nigeria
1,891
24
Ranking Based On Selection: 24
Kenechukwu Chinemelum Uche-Okonkwo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
714
710
0.994
* Last 6 Years Citation Counts Rankings
Rankings
578,821
Nigeria
1,986
25
Ranking Based On Selection: 25
Grace Ogundajo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
799
688
0.861