Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 635 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025

Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Nigeria
Chibundu N. Ezekiel
Food microbiology
Food safety
Fungal taxonomy
Mycotoxicolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,872
4,429
0.754
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Nigeria
Patrick Okwute
Cardio-metabolic physiology
chronobiology
molecular biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,261
4,232
0.993
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Nigeria
Olumide A Abiodun
Reproductive Health
Epidemiology
Adolescent Health
Mental Health
Clinical Researc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,772
3,385
0.897
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Nigeria
Awodele Oludele
Artificial Intelligence
Data Communication and Information Securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,052
1,929
0.632
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Nigeria
Onakoya Adegbemi Babatunde
Economics
Accounting and Financ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,357
1,476
0.626
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Nigeria
Asikhia Olalekan
Management
Marketing and Entrepreneurshi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,089
1,434
0.686
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Nigeria
Adegbie Folajimi Festus
Accounting and Taxatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,705
1,386
0.813
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Nigeria
Olajumoke Yacob-Haliso
Political Science/IR
Women's & Gender Studies
Refugee Studies
African Studie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,191
1,139
0.956
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Nigeria
Nwangburuka Cyril
Agriculture
genetics
plant breeding
biotechnolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,626
1,089
0.670

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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Nigeria
Okwu Andy T.
International Economics
Macroeconomics
Financial Economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,054
1,068
0.520
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Nigeria
John Sotunsa
Hypertensive disease in pregnancy
perinatal mental health
gynaecological oncology and medical mission
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,524
1,055
0.692
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Nigeria
Owolabi Sunday
Corporate Governance
Financial Management and Public Sector Accountin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,877
1,049
0.559
* 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 Peopl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,322
1,046
0.791
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Nigeria
Enitan, Seyi Samson
Medical Microbiology
Immunology
Virology
HIV and Medicinal Plants Researc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,116
985
0.883
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Nigeria
Kolawole Ayeni
Food Microbiology
Mycotoxin
Molecular Biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
992
949
0.957
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Nigeria
Olayiwola Kehinde Olawunmi
Epidemiologis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
954
949
0.995
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Nigeria
Akpa Victoria
Human Resources Management
Organizational Behaviou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,536
947
0.617
* 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 Computin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,633
871
0.533
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Nigeria
Titus Oyedele
Paediatric Dentistry
Cariology
MIH
Developmental defects of ename
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,299
860
0.662
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Nigeria
Onuoha Clement Enyinnaya Omenihu
General Surgery
Paediatric Surger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
975
843
0.865
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Nigeria
Agboola Taiwo
Orthopaedic surger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,029
842
0.818
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Nigeria
Olufunmiso Olusola Olajuyigbe
Medical and Pharmaceutical Microbiology
Ethnobotany/Phytomedicine
Bacteriolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,501
821
0.547
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Nigeria
Godswill N. Anyasor
Drug Biochemistry
Drug discovery
Toxicology
Pharmacological Biochemistry
Membrane and Lipid Biochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,535
811
0.528
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Nigeria
Grace Ogundajo
ASSOCIATE PROFESSOR OF ACCOUNTIN
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
842
737
0.875
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Nigeria
Chukwuka Elendu
Internal medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
720
720
1.000
* Last 6 Years Citation Counts Rankings
Rankings
105,704
Nigeria
107
1
Ranking Based On Selection: 1
Chibundu N. Ezekiel
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,872
4,429
0.754
Food microbiology
Food safety
Fungal taxonomy
Mycotoxicolog
* Last 6 Years Citation Counts Rankings
Rankings
111,701
Nigeria
114
2
Ranking Based On Selection: 2
Patrick Okwute
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,261
4,232
0.993
Cardio-metabolic physiology
chronobiology
molecular biolog
* Last 6 Years Citation Counts Rankings
Rankings
145,464
Nigeria
173
3
Ranking Based On Selection: 3
Olumide A Abiodun
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,772
3,385
0.897
Reproductive Health
Epidemiology
Adolescent Health
Mental Health
Clinical Researc
* Last 6 Years Citation Counts Rankings
Rankings
265,423
Nigeria
437
4
Ranking Based On Selection: 4
Awodele Oludele
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,052
1,929
0.632
Artificial Intelligence
Data Communication and Information Securit
* Last 6 Years Citation Counts Rankings
Rankings
340,643
Nigeria
641
5
Ranking Based On Selection: 5
Onakoya Adegbemi Babatunde
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,357
1,476
0.626
* Last 6 Years Citation Counts Rankings
Rankings
349,259
Nigeria
666
6
Ranking Based On Selection: 6
Asikhia Olalekan
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,089
1,434
0.686
* Last 6 Years Citation Counts Rankings
Rankings
359,730
Nigeria
705
7
Ranking Based On Selection: 7
Adegbie Folajimi Festus
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,705
1,386
0.813
* Last 6 Years Citation Counts Rankings
Rankings
423,023
Nigeria
947
8
Ranking Based On Selection: 8
Olajumoke Yacob-Haliso
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,191
1,139
0.956
Political Science/IR
Women's & Gender Studies
Refugee Studies
African Studie
* Last 6 Years Citation Counts Rankings
Rankings
437,803
Nigeria
1,026
9
Ranking Based On Selection: 9
Nwangburuka Cyril
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,626
1,089
0.670
Agriculture
genetics
plant breeding
biotechnolog
* Last 6 Years Citation Counts Rankings
Rankings
444,278
Nigeria
1,054
10
Ranking Based On Selection: 10
Okwu Andy T.
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,054
1,068
0.520
International Economics
Macroeconomics
Financial Economic

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Last 6 Years Citation Counts Rankings
Rankings
448,446
Nigeria
1,083
11
Ranking Based On Selection: 11
John Sotunsa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,524
1,055
0.692
Hypertensive disease in pregnancy
perinatal mental health
gynaecological oncology and medical mission
* Last 6 Years Citation Counts Rankings
Rankings
450,407
Nigeria
1,102
12
Ranking Based On Selection: 12
Owolabi Sunday
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,877
1,049
0.559
Corporate Governance
Financial Management and Public Sector Accountin
* Last 6 Years Citation Counts Rankings
Rankings
451,446
Nigeria
1,108
13
Ranking Based On Selection: 13
Ogechukwu C. Taiwo
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,322
1,046
0.791
Surgery
Paediatric Surgery
Medical/Surgical Education
Child Health
Psychology of Children and Young Peopl
* Last 6 Years Citation Counts Rankings
Rankings
471,905
Nigeria
1,209
14
Ranking Based On Selection: 14
Enitan, Seyi Samson
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,116
985
0.883
Medical Microbiology
Immunology
Virology
HIV and Medicinal Plants Researc
* Last 6 Years Citation Counts Rankings
Rankings
484,958
Nigeria
1,312
15
Ranking Based On Selection: 15
Kolawole Ayeni
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
992
949
0.957
* Last 6 Years Citation Counts Rankings
Rankings
484,973
Nigeria
1,313
16
Ranking Based On Selection: 16
Olayiwola Kehinde Olawunmi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
954
949
0.995
* Last 6 Years Citation Counts Rankings
Rankings
485,538
Nigeria
1,316
17
Ranking Based On Selection: 17
Akpa Victoria
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,536
947
0.617
* Last 6 Years Citation Counts Rankings
Rankings
515,069
Nigeria
1,520
18
Ranking Based On Selection: 18
Afolashade Kuyoro|Shade Kuyoro
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,633
871
0.533
Artificial Intelligence –Data Mining
Machine Learning
Big Data
Networking -Cloud Computin
* Last 6 Years Citation Counts Rankings
Rankings
519,776
Nigeria
1,551
19
Ranking Based On Selection: 19
Titus Oyedele
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,299
860
0.662
Paediatric Dentistry
Cariology
MIH
Developmental defects of ename
* Last 6 Years Citation Counts Rankings
Rankings
527,035
Nigeria
1,597
20
Ranking Based On Selection: 20
Onuoha Clement Enyinnaya Omenihu
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
975
843
0.865
* Last 6 Years Citation Counts Rankings
Rankings
527,425
Nigeria
1,602
21
Ranking Based On Selection: 21
Agboola Taiwo
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,029
842
0.818
* Last 6 Years Citation Counts Rankings
Rankings
536,457
Nigeria
1,668
22
Ranking Based On Selection: 22
Olufunmiso Olusola Olajuyigbe
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,501
821
0.547
Medical and Pharmaceutical Microbiology
Ethnobotany/Phytomedicine
Bacteriolog
* Last 6 Years Citation Counts Rankings
Rankings
540,867
Nigeria
1,702
23
Ranking Based On Selection: 23
Godswill N. Anyasor
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,535
811
0.528
Drug Biochemistry
Drug discovery
Toxicology
Pharmacological Biochemistry
Membrane and Lipid Biochemistr
* Last 6 Years Citation Counts Rankings
Rankings
575,740
Nigeria
1,961
24
Ranking Based On Selection: 24
Grace Ogundajo
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
842
737
0.875
* Last 6 Years Citation Counts Rankings
Rankings
584,383
Nigeria
2,032
25
Ranking Based On Selection: 25
Chukwuka Elendu
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
720
720
1.000