Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 659 Scientists Citation Rankings - 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.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Natural science/Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,613
10,846
0.616
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Pharmacognosy
isolation and identification of biologically active leads from natural sources
microbial metabolism and semisyn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,906
9,768
0.655
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Histology
cell biology
histochemistry
immunohistochemistry
embryology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,682
5,252
0.450
* Total Citation Counts Rankings
Ranking Based On Selection: 4
hyperspectral imaging
Imaging spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,239
3,614
0.391
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Microbial Ecology
Microbial Taxonomy
Microbial Physiology
Microbial Genetics
Microbial-plant interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,661
4,779
0.624
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Environmental toxicology
risk assessment
life cycle analysis
persistent organic pollutants
integrated ecosystem assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,462
3,577
0.479
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Abiotic Stress Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,949
5,716
0.961
* Total Citation Counts Rankings
Ranking Based On Selection: 8
clinical biochemistry
non-communicable diseases
natural products
drug discovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,906
5,482
0.928
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Medical Microbiology
Bacteriology
Immunology
Mycology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,664
5,476
0.967
* Total Citation Counts Rankings
Ranking Based On Selection: 10
neurosurgery
Medical education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,765
1,477
0.310
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Urology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,536
1,097
0.242
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Agricultural stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,313
2,931
0.680
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Biomaterials
Nanomaterials
electrocatalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,207
2,134
0.507
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Microbiology
Immunology
Proteomics
Bioinformatics
Genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,189
3,362
0.803
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Numerical Analysis
Computational Fluid Dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,879
1,091
0.281
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,532
2,412
0.683
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Medical education
Hypertension
Endothelium-derived Factors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,482
901
0.259
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Fuel Cells and Batteries
Advanced Energy materials
Renewable Energy
Energy Storage
Water
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,378
2,931
0.868
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Biochar
Composting
Carbon Sequestration
Climate Change Mitigation
Plant and Soil Ecosystem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,312
2,355
0.711
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Molecular Biology
Non-coding RNA
bioinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,181
2,731
0.859
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Water Quality
Soil Amendments
Magnetized Water
Soil Properties
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,049
1,805
0.592
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Pharmaclogy and Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,001
1,680
0.560
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Mechanical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,880
2,417
0.839
* Total Citation Counts Rankings
Ranking Based On Selection: 24
pharmaceutical science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,863
1,349
0.471
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Mycosystematist
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,682
2,280
0.850
* Total Citation Counts Rankings
Rankings
49,364
58
1
Ranking Based On Selection: 1
Waleed E. Mahmoud
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,613
10,846
0.616
* Total Citation Counts Rankings
Rankings
61,637
74
2
Ranking Based On Selection: 2
Safwat A Ahmed
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,906
9,768
0.655
Pharmacognosy
isolation and identification of biologically active leads from natural sources
microbial metabolism and semisyn
* Total Citation Counts Rankings
Rankings
83,783
114
3
Ranking Based On Selection: 3
Abd El-Hamid Osman
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,682
5,252
0.450
Histology
cell biology
histochemistry
immunohistochemistry
embryology
* Total Citation Counts Rankings
Rankings
110,017
158
4
Ranking Based On Selection: 4
Gamal Elmasry
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,239
3,614
0.391
hyperspectral imaging
Imaging spectroscopy
* Total Citation Counts Rankings
Rankings
135,570
214
5
Ranking Based On Selection: 5
Microbial Biosystems
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,661
4,779
0.624
Microbial Ecology
Microbial Taxonomy
Microbial Physiology
Microbial Genetics
Microbial-plant interactions
* Total Citation Counts Rankings
Rankings
139,483
223
6
Ranking Based On Selection: 6
Mohamed Tawfic Ahmed
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,462
3,577
0.479
Environmental toxicology
risk assessment
life cycle analysis
persistent organic pollutants
integrated ecosystem assessment
* Total Citation Counts Rankings
Rankings
176,152
307
7
Ranking Based On Selection: 7
Amr el Kelish
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,949
5,716
0.961
* Total Citation Counts Rankings
Rankings
177,424
311
8
Ranking Based On Selection: 8
Amin Ibrahim
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,906
5,482
0.928
clinical biochemistry
non-communicable diseases
natural products
drug discovery
* Total Citation Counts Rankings
Rankings
184,997
335
9
Ranking Based On Selection: 9
Abdelazeem Mohamed Algammal
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,664
5,476
0.967
Medical Microbiology
Bacteriology
Immunology
Mycology
* Total Citation Counts Rankings
Rankings
218,787
435
10
Ranking Based On Selection: 10
Khalil Nabil H
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,765
1,477
0.310
neurosurgery
Medical education
* Total Citation Counts Rankings
Rankings
229,055
472
11
Ranking Based On Selection: 11
Ahmed El Sakka
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,536
1,097
0.242
* Total Citation Counts Rankings
Rankings
239,985
507
12
Ranking Based On Selection: 12
Salah El-Hendawy
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,313
2,931
0.680
* Total Citation Counts Rankings
Rankings
245,531
519
13
Ranking Based On Selection: 13
Nasser Y. Mostafa
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,207
2,134
0.507
Biomaterials
Nanomaterials
electrocatalysis
* Total Citation Counts Rankings
Rankings
246,491
523
14
Ranking Based On Selection: 14
Shymaa Enany
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,189
3,362
0.803
Microbiology
Immunology
Proteomics
Bioinformatics
Genomics
* Total Citation Counts Rankings
Rankings
264,221
607
15
Ranking Based On Selection: 15
AA Soliman
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,879
1,091
0.281
Numerical Analysis
Computational Fluid Dynamics
* Total Citation Counts Rankings
Rankings
286,448
680
16
Ranking Based On Selection: 16
El Sayed Khafagy
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,532
2,412
0.683
* Total Citation Counts Rankings
Rankings
290,052
695
17
Ranking Based On Selection: 17
Salah Eldin Kassab
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,482
901
0.259
Medical education
Hypertension
Endothelium-derived Factors
* Total Citation Counts Rankings
Rankings
297,640
727
18
Ranking Based On Selection: 18
Abdalla M Abdalla
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,378
2,931
0.868
Fuel Cells and Batteries
Advanced Energy materials
Renewable Energy
Energy Storage
Water
* Total Citation Counts Rankings
Rankings
302,646
745
19
Ranking Based On Selection: 19
Yasser Mahmoud Awad
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,312
2,355
0.711
Biochar
Composting
Carbon Sequestration
Climate Change Mitigation
Plant and Soil Ecosystem
* Total Citation Counts Rankings
Rankings
312,939
802
20
Ranking Based On Selection: 20
Manal Said Fawzy
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,181
2,731
0.859
Molecular Biology
Non-coding RNA
bioinformatics
* Total Citation Counts Rankings
Rankings
324,242
863
21
Ranking Based On Selection: 21
Ahmed Ibrahim Mohamed Ahmed
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,049
1,805
0.592
* Total Citation Counts Rankings
Rankings
328,558
890
22
Ranking Based On Selection: 22
Yasser MA Moustafa
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,001
1,680
0.560
Pharmaclogy and Toxicology
* Total Citation Counts Rankings
Rankings
339,538
948
23
Ranking Based On Selection: 23
Ahmed Salah Eldin
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,880
2,417
0.839
Mechanical Engineering
* Total Citation Counts Rankings
Rankings
341,207
955
24
Ranking Based On Selection: 24
Mamdouh Mostafa Ghorab
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,863
1,349
0.471
pharmaceutical science
* Total Citation Counts Rankings
Rankings
359,651
1,027
25
Ranking Based On Selection: 25
Ahmed M Abdel Azeem
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,682
2,280
0.850