Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.266 Scientists Citation Rankings - 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.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Asthma
Chronic pulmonary lung diseases
Pneumonia
Tuberculos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,448
12,314
0.749
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Antimicrobial Resistance
One Health
Genomic Surveillance
Microbial Systematic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,515
8,963
0.578
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Water quality management
Applied GIS for Water quality managementENVIRONMENTAL MANAGEMENT
ENVIRONMENTAL SANITATION
ENVIRONME
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,876
8,806
0.992
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Gastroenterology
Endoscopy
Hepatology
Oncology
Cardiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,824
3,539
0.734
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Geographical and Microbial Ecolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,210
3,955
0.939
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Comparative Politics
Security and Conflict Studies
Public Polic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,625
1,267
0.350
* Total Citation Counts Rankings
Ranking Based On Selection: 7
chemical engineering processe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,499
551
0.157
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Pharmaceutical Chemistry
Natural Products Research
phytochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,103
1,776
0.572
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Periodontology
Halitosis
Health Service Research
Occupational healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,821
1,420
0.503
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Environmental Microbiology
Public Health
Microbial and Genetic Toxicolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,691
1,622
0.603
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Phytomedicine
Ethnomedicine
Ethnobotany
Botany
Seed scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,539
1,208
0.476
* Total Citation Counts Rankings
Ranking Based On Selection: 12
food science and technolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
522
0.210
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Bioresource valorization
Heterogeneous catalysis
Biofuels
Organic acids
Pollution managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,506
2,110
0.842
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Pharmacy & Pharmaceutics
Drug delivery & Biotechnology
Cellulose
Malarial studie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,342
547
0.234
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,339
1,221
0.522
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Paediatric cardiology
infectious disease
public healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,337
1,219
0.522
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Hydrobiology and Fisherie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,164
749
0.346
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Anti-cancer compounds from Annona muricarta
targeted delivery of Annona muricarta-derived gold nanoparticles for tretament of colorectal cancer
uterotonic potential of water leaf (Talinium triagulare)
identification of compounds responsible for thelaxative effects of Euphorbia heterophyll
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,118
1,037
0.490
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Environmental Biotechnology
Plant Ecophysiology
Sustainable Agricultur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,165
1,364
0.630
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Materno-Foetal Medicine and Reproductive Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,054
741
0.361
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Materials Chemistry
Polymers and Nanochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,951
1,292
0.662
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Ecotoxicology and Pollution Studie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,989
1,472
0.740
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Lactic acid bacteria research
LAB genomics
Food microbiology
Feed waste management
Probiotic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,922
1,676
0.872
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Community Medicine and Public Health
Occupational Health
Health Services Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,920
737
0.384
* Total Citation Counts Rankings
Ranking Based On Selection: 25
epidemiology
occupational healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,645
577
0.351
* Total Citation Counts Rankings
Rankings
56,267
30
1
Ranking Based On Selection: 1
Elizabeth Egbagbe
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,448
12,314
0.749
* Total Citation Counts Rankings
Rankings
60,822
32
2
Ranking Based On Selection: 2
Etinosa O. Igbinosa
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,515
8,963
0.578
Antimicrobial Resistance
One Health
Genomic Surveillance
Microbial Systematic
* Total Citation Counts Rankings
Rankings
119,407
56
3
Ranking Based On Selection: 3
Osayomwanbo Osarenotor
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,876
8,806
0.992
Water quality management
Applied GIS for Water quality managementENVIRONMENTAL MANAGEMENT
ENVIRONMENTAL SANITATION
ENVIRONME
* Total Citation Counts Rankings
Rankings
223,694
195
4
Ranking Based On Selection: 4
Casimir Omuemu
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,824
3,539
0.734
Gastroenterology
Endoscopy
Hepatology
Oncology
Cardiolog
* Total Citation Counts Rankings
Rankings
253,812
256
5
Ranking Based On Selection: 5
Matthew Chidozie Ogwu
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,210
3,955
0.939
* Total Citation Counts Rankings
Rankings
289,443
327
6
Ranking Based On Selection: 6
Augustine Ikelegbe
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,625
1,267
0.350
Comparative Politics
Security and Conflict Studies
Public Polic
* Total Citation Counts Rankings
Rankings
298,439
346
7
Ranking Based On Selection: 7
David K Lambert
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,499
551
0.157
chemical engineering processe
* Total Citation Counts Rankings
Rankings
329,910
439
8
Ranking Based On Selection: 8
Abiodun Falodun
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,103
1,776
0.572
Pharmaceutical Chemistry
Natural Products Research
phytochemistr
* Total Citation Counts Rankings
Rankings
356,365
506
9
Ranking Based On Selection: 9
Clement Chinedu Azodo
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,821
1,420
0.503
Periodontology
Halitosis
Health Service Research
Occupational healt
* Total Citation Counts Rankings
Rankings
369,962
552
10
Ranking Based On Selection: 10
Isoken H. Igbinosa
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,691
1,622
0.603
Environmental Microbiology
Public Health
Microbial and Genetic Toxicolog
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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
* Total Citation Counts Rankings
Rankings
387,070
604
11
Ranking Based On Selection: 11
Macdonald Idu
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,539
1,208
0.476
Phytomedicine
Ethnomedicine
Ethnobotany
Botany
Seed scienc
* Total Citation Counts Rankings
Rankings
393,141
627
13
Ranking Based On Selection: 12
John Igene
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
522
0.210
food science and technolog
* Total Citation Counts Rankings
Rankings
390,937
617
12
Ranking Based On Selection: 13
Amenaghawon Nosakhare Andrew
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,506
2,110
0.842
Bioresource valorization
Heterogeneous catalysis
Biofuels
Organic acids
Pollution managemen
* Total Citation Counts Rankings
Rankings
411,309
675
14
Ranking Based On Selection: 14
Augustine O. Okhamafe
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,342
547
0.234
Pharmacy & Pharmaceutics
Drug delivery & Biotechnology
Cellulose
Malarial studie
* Total Citation Counts Rankings
Rankings
411,693
681
15
Ranking Based On Selection: 15
Ehidiamen Sadoh
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,339
1,221
0.522
* Total Citation Counts Rankings
Rankings
411,948
684
16
Ranking Based On Selection: 16
Wilson E. Sadoh
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,337
1,219
0.522
Paediatric cardiology
infectious disease
public healt
* Total Citation Counts Rankings
Rankings
435,714
774
18
Ranking Based On Selection: 17
Anthony E. Ogbeibu
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,164
749
0.346
* Total Citation Counts Rankings
Rankings
442,539
801
19
Ranking Based On Selection: 18
Paulinus Okolie
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,118
1,037
0.490
Anti-cancer compounds from Annona muricarta
targeted delivery of Annona muricarta-derived gold nanoparticles for tretament of colorectal cancer
uterotonic potential of water leaf (Talinium triagulare)
identification of compounds responsible for thelaxative effects of Euphorbia heterophyll
* Total Citation Counts Rankings
Rankings
435,503
773
17
Ranking Based On Selection: 19
Beckley Ikhajiagbe|B. Ikhajiagbe
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,165
1,364
0.630
Environmental Biotechnology
Plant Ecophysiology
Sustainable Agricultur
* Total Citation Counts Rankings
Rankings
452,437
850
20
Ranking Based On Selection: 20
Adedapo Babatunde A. Ande
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,054
741
0.361
Materno-Foetal Medicine and Reproductive Healt
* Total Citation Counts Rankings
Rankings
468,964
913
22
Ranking Based On Selection: 21
Esther Uwidia Ikhuoria
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,951
1,292
0.662
Materials Chemistry
Polymers and Nanochemistr
* Total Citation Counts Rankings
Rankings
462,750
890
21
Ranking Based On Selection: 22
Isioma Tongo
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,989
1,472
0.740
Ecotoxicology and Pollution Studie
* Total Citation Counts Rankings
Rankings
473,931
936
23
Ranking Based On Selection: 23
Smith Etareri Evivie
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,922
1,676
0.872
Lactic acid bacteria research
LAB genomics
Food microbiology
Feed waste management
Probiotic
* Total Citation Counts Rankings
Rankings
474,403
937
24
Ranking Based On Selection: 24
Antoinette Ngozi Ofili
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,920
737
0.384
Community Medicine and Public Health
Occupational Health
Health Services Managemen
* Total Citation Counts Rankings
Rankings
526,326
1,183
25
Ranking Based On Selection: 25
Obehi Okojie
University of Benin
Benin City, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,645
577
0.351
epidemiology
occupational healt