Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,864 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

Ayman Goudah
PK
PD
Pharmacological Screening
Molecular Pharmacology
Pharmacogenetics and Pharmacogenomics
Metrics
H-Index
i10 Index
Citation
26
46
1,489
Alaa Eldin Eissa
Aquatic Medicine
Fish Diseases
Shellfish Diseases
Coral Diseases
Marine Mammals Diseases
Metrics
H-Index
i10 Index
Citation
25
46
1,782
Mahmoud Elhariri
Microbiology
Molecular Biology
Bacteriology
Mycology
Metrics
H-Index
i10 Index
Citation
24
38
1,565
* Rankings
Ranking Based On Selection :11
Ashraf Abu Seida
Veterinary Surgery
Anesthesiology & Radiology
Metrics
H-Index
i10 Index
Citation
23
47
1,893
* Rankings
Ranking Based On Selection :13
Nermeen Abu Elala|Nermeen Abuelala, Nermeen M. Mohamed
Veterinary Medicine
Aquatic diseases
Aquatic immunology
Aquaculture nutrition and management
Metrics
H-Index
i10 Index
Citation
22
25
1,515
* Rankings
Ranking Based On Selection :17
Khaled A Abdel Moein
zoonoses
public health
veterinary medicine
Metrics
H-Index
i10 Index
Citation
21
27
1,054
* Rankings
Ranking Based On Selection :19
Ahmed Gad 2
Developmental Biology
Embryo Genomics
IVF
Metrics
H-Index
i10 Index
Citation
20
25
1,606
* Rankings
Ranking Based On Selection :20
Sahar S Abd El Rahman
Anatomic Pathology
Toxicopathology
Experimental Pathology
Oncopathology
creating animal models
Metrics
H-Index
i10 Index
Citation
19
35
1,377
* Rankings
Ranking Based On Selection :23
Gamal Mohamed Kamel Mehaisen
Embryo recovery
cryopreservation
embryo transfer
rabbit reproduction and poultry physiology
Metrics
H-Index
i10 Index
Citation
19
28
924
* Rankings
Ranking Based On Selection :26
Haitham Amer
Virology
Vaccine
Molecular epidemiology
Metrics
H-Index
i10 Index
Citation
18
23
1,011
* Rankings
Ranking Based On Selection :27
Abo Bakr Abdel Kadr Elwishy
Obstetrics
Gynecology and Artificial insemination
Metrics
H-Index
i10 Index
Citation
18
36
1,633
* Rankings
Ranking Based On Selection :28
Shaalan M
Fish diseases
Microbiology
Pathology
Toxicology
Nanomedicine
Metrics
H-Index
i10 Index
Citation
17
24
1,328
* Rankings
Ranking Based On Selection :29
Manal M Zaki
Veterinary Hygiene environmental pollution climatic change
Metrics
H-Index
i10 Index
Citation
17
25
1,256
* Rankings
Ranking Based On Selection :32
Haithem Farghali
Veterinary Surgery
Radiology
Ultrasound
Orthopedic surgery
Oncology.
Metrics
H-Index
i10 Index
Citation
16
26
1,030
* Rankings
Ranking Based On Selection :38
Ashraf Shamaa
Syrgery
regenerative surgery
Molecular biology
Diagnostic image
Metrics
H-Index
i10 Index
Citation
14
16
895
* Rankings
Ranking Based On Selection :39
Farid Kamal Ramzi Stino
Poultry Breeding and Genetics
Quail
and Broilers
Metrics
H-Index
i10 Index
Citation
14
24
604
* Rankings
Ranking Based On Selection :41
Ashraf El Sayed
IVF in Farm Animals
Embryo genomics
Gene expression in pre-implantation embryos
Metrics
H-Index
i10 Index
Citation
13
14
744
* Rankings
Ranking Based On Selection :43
Ashraf Hesham Barkawi
Animal Physiology
Animal reproduction
in vitro fertilization
Metrics
H-Index
i10 Index
Citation
12
18
633
* Rankings
Ranking Based On Selection :45
Ashraf M Morgan
Reproductive Toxicology
immunotoxicology
Hepato_ and nephrotoxicology
natural phytoantioxidants
Metrics
H-Index
i10 Index
Citation
11
14
560
* Rankings
Ranking Based On Selection :49
Ahmed Saad Sami Awad
Animal Production
Meat Production and Quality
Metrics
H-Index
i10 Index
Citation
10
10
577
El Lethey
Animal and Poultry Behaviour and Management
Metrics
H-Index
i10 Index
Citation
9
7
1,042
Adel Kubesy
Internal Veterinary Medicine
Hematology
Serum Biochemistry
markers
Clinical Pathology
Metrics
H-Index
i10 Index
Citation
7
7
199
Aya A.Shokry
Pharmacology
Veterinary Medicine
Medicinal Plant
Metrics
H-Index
i10 Index
Citation
6
5
117
Mahmoud Saber Abdulkader
veterinary internal medicine
small ruminant medicine
rumenology
pet animal pharmaceuticals
Metrics
H-Index
i10 Index
Citation
3
1
24
Sabah Ali
Veterinary medicine
Microbiology
Microbiome
Biodegradation
poultry
Metrics
H-Index
i10 Index
Citation
2
1
31
Rankings
Ranking Based On Selection: 1
Marwa A Ibrahim
Metrics
H-Index
i10 Index
Citation Counts
32
79
2,810
Rankings
Ranking Based On Selection: 2
Kawkab Abd El Aziz
Metrics
H-Index
i10 Index
Citation Counts
28
78
2,330
Rankings
Ranking Based On Selection: 3
Mashaly Magdi
Metrics
H-Index
i10 Index
Citation Counts
28
50
3,690
Rankings
Ranking Based On Selection: 4
Adel Khattab
Metrics
H-Index
i10 Index
Citation Counts
26
80
2,921
Rankings
Ranking Based On Selection: 5
Ayman Goudah
Metrics
H-Index
i10 Index
Citation Counts
26
46
1,489
PK
PD
Pharmacological Screening
Molecular Pharmacology
Pharmacogenetics and Pharmacogenomics
Rankings
Ranking Based On Selection: 6
Reham M Abd Elsalam
Metrics
H-Index
i10 Index
Citation Counts
25
37
1,427
Rankings
Ranking Based On Selection: 7
Hanan Ogaly
Metrics
H-Index
i10 Index
Citation Counts
25
37
1,388
Rankings
Ranking Based On Selection: 8
Alaa Eldin Eissa
Metrics
H-Index
i10 Index
Citation Counts
25
46
1,782
Aquatic Medicine
Fish Diseases
Shellfish Diseases
Coral Diseases
Marine Mammals Diseases
Rankings
Ranking Based On Selection: 9
Mahmoud Elhariri
Metrics
H-Index
i10 Index
Citation Counts
24
38
1,565
Microbiology
Molecular Biology
Bacteriology
Mycology
Rankings
Ranking Based On Selection: 10
Khaled Abo El Sooud
Metrics
H-Index
i10 Index
Citation Counts
24
45
1,660
Rankings
Ranking Based On Selection: 11
Ashraf Abu Seida
Metrics
H-Index
i10 Index
Citation Counts
23
47
1,893
Rankings
Ranking Based On Selection: 12
Nasser Ghanem
Metrics
H-Index
i10 Index
Citation Counts
23
32
1,814
Rankings
Ranking Based On Selection: 13
Nermeen Abu Elala|Nermeen Abuelala, Nermeen M. Mohamed
Metrics
H-Index
i10 Index
Citation Counts
22
25
1,515
Veterinary Medicine
Aquatic diseases
Aquatic immunology
Aquaculture nutrition and management
Rankings
Ranking Based On Selection: 14
Mona Galal
Metrics
H-Index
i10 Index
Citation Counts
21
30
1,042
Rankings
Ranking Based On Selection: 15
Wafaa A Abd El Ghany
Metrics
H-Index
i10 Index
Citation Counts
21
46
1,491
Rankings
Ranking Based On Selection: 16
Hosam M Safaa
Metrics
H-Index
i10 Index
Citation Counts
21
35
1,686
Rankings
Ranking Based On Selection: 17
Khaled A Abdel Moein
Metrics
H-Index
i10 Index
Citation Counts
21
27
1,054
Rankings
Ranking Based On Selection: 18
Faten F Mohammed
Metrics
H-Index
i10 Index
Citation Counts
20
39
1,372
Rankings
Ranking Based On Selection: 19
Ahmed Gad 2
Metrics
H-Index
i10 Index
Citation Counts
20
25
1,606
Rankings
Ranking Based On Selection: 20
Sahar S Abd El Rahman
Metrics
H-Index
i10 Index
Citation Counts
19
35
1,377
Anatomic Pathology
Toxicopathology
Experimental Pathology
Oncopathology
creating animal models
Rankings
Ranking Based On Selection: 21
Ahmed Mohamed Fouad
Metrics
H-Index
i10 Index
Citation Counts
19
31
1,676
Rankings
Ranking Based On Selection: 22
Sherif Marouf
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,129
Rankings
Ranking Based On Selection: 23
Gamal Mohamed Kamel Mehaisen
Metrics
H-Index
i10 Index
Citation Counts
19
28
924
Embryo recovery
cryopreservation
embryo transfer
rabbit reproduction and poultry physiology
Rankings
Ranking Based On Selection: 24
Osama Mohamed El Husseiny
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,296
Rankings
Ranking Based On Selection: 25
Ahmed Othman Abbas
Metrics
H-Index
i10 Index
Citation Counts
18
24
2,024
Rankings
Ranking Based On Selection: 26
Haitham Amer
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,011
Rankings
Ranking Based On Selection: 27
Abo Bakr Abdel Kadr Elwishy
Metrics
H-Index
i10 Index
Citation Counts
18
36
1,633
Rankings
Ranking Based On Selection: 28
Shaalan M
Metrics
H-Index
i10 Index
Citation Counts
17
24
1,328
Fish diseases
Microbiology
Pathology
Toxicology
Nanomedicine
Rankings
Ranking Based On Selection: 29
Manal M Zaki
Metrics
H-Index
i10 Index
Citation Counts
17
25
1,256
Veterinary Hygiene environmental pollution climatic change
Rankings
Ranking Based On Selection: 30
Mamdouh Afify
Metrics
H-Index
i10 Index
Citation Counts
17
26
736
Rankings
Ranking Based On Selection: 31
Mohamed Mahmoud Elshafie
Metrics
H-Index
i10 Index
Citation Counts
17
33
1,065
Rankings
Ranking Based On Selection: 32
Haithem Farghali
Metrics
H-Index
i10 Index
Citation Counts
16
26
1,030
Veterinary Surgery
Radiology
Ultrasound
Orthopedic surgery
Oncology.
Rankings
Ranking Based On Selection: 33
Abdallah Ali Ghazalah
Metrics
H-Index
i10 Index
Citation Counts
15
21
1,177
Rankings
Ranking Based On Selection: 34
Mamdouh Omar Abdelsamee
Metrics
H-Index
i10 Index
Citation Counts
15
21
743
Rankings
Ranking Based On Selection: 35
El Sayed Abdulrahman Gihad
Metrics
H-Index
i10 Index
Citation Counts
15
18
925
Rankings
Ranking Based On Selection: 36
Khaled Attia
Metrics
H-Index
i10 Index
Citation Counts
14
20
654
Rankings
Ranking Based On Selection: 37
Ayman Mostafa
Metrics
H-Index
i10 Index
Citation Counts
14
19
790
Rankings
Ranking Based On Selection: 38
Ashraf Shamaa
Metrics
H-Index
i10 Index
Citation Counts
14
16
895
Syrgery
regenerative surgery
Molecular biology
Diagnostic image
Rankings
Ranking Based On Selection: 39
Farid Kamal Ramzi Stino
Metrics
H-Index
i10 Index
Citation Counts
14
24
604
Rankings
Ranking Based On Selection: 40
Abd El Rahman Mohamed Atta
Metrics
H-Index
i10 Index
Citation Counts
14
14
912
Rankings
Ranking Based On Selection: 41
Ashraf El Sayed
Metrics
H-Index
i10 Index
Citation Counts
13
14
744
IVF in Farm Animals
Embryo genomics
Gene expression in pre-implantation embryos
Rankings
Ranking Based On Selection: 42
Gamal Ashour Hassan
Metrics
H-Index
i10 Index
Citation Counts
12
18
797
Rankings
Ranking Based On Selection: 43
Ashraf Hesham Barkawi
Metrics
H-Index
i10 Index
Citation Counts
12
18
633
Animal Physiology
Animal reproduction
in vitro fertilization
Rankings
Ranking Based On Selection: 44
Adel Zaki Mohamed Soliman
Metrics
H-Index
i10 Index
Citation Counts
12
14
382
Rankings
Ranking Based On Selection: 45
Ashraf M Morgan
Metrics
H-Index
i10 Index
Citation Counts
11
14
560
Reproductive Toxicology
immunotoxicology
Hepato_ and nephrotoxicology
natural phytoantioxidants
Rankings
Ranking Based On Selection: 46
HK El Senousey
Metrics
H-Index
i10 Index
Citation Counts
11
13
1,123
Rankings
Ranking Based On Selection: 47
Omar Eltookhy
Metrics
H-Index
i10 Index
Citation Counts
11
12
649
Rankings
Ranking Based On Selection: 48
Abdelrahman Mahmoud Abdelgawad
Metrics
H-Index
i10 Index
Citation Counts
11
16
456
Rankings
Ranking Based On Selection: 49
Ahmed Saad Sami Awad
Metrics
H-Index
i10 Index
Citation Counts
10
10
577
Rankings
Ranking Based On Selection: 50
Khaled Nasr
Metrics
H-Index
i10 Index
Citation Counts
9
8
322
Rankings
Ranking Based On Selection: 51
El Lethey
Metrics
H-Index
i10 Index
Citation Counts
9
7
1,042
Rankings
Ranking Based On Selection: 52
Taha Mohamed El Bedawy
Metrics
H-Index
i10 Index
Citation Counts
9
9
449
Rankings
Ranking Based On Selection: 53
Galal El Deen Abdul Aziz
Metrics
H-Index
i10 Index
Citation Counts
9
9
194
Rankings
Ranking Based On Selection: 54
Neven Hassan
Metrics
H-Index
i10 Index
Citation Counts
8
8
142
Rankings
Ranking Based On Selection: 56
Amal El Sayed Al Sherbiny
Metrics
H-Index
i10 Index
Citation Counts
8
7
187
Rankings
Ranking Based On Selection: 57
Adel Kubesy
Metrics
H-Index
i10 Index
Citation Counts
7
7
199
Internal Veterinary Medicine
Hematology
Serum Biochemistry
markers
Clinical Pathology
Rankings
Ranking Based On Selection: 58
Mamdouh Sayed Abd Alla
Metrics
H-Index
i10 Index
Citation Counts
7
7
194
Rankings
Ranking Based On Selection: 59
Manar A Abdelmageed
Metrics
H-Index
i10 Index
Citation Counts
6
6
145
Rankings
Ranking Based On Selection: 60
Aya A.Shokry
Metrics
H-Index
i10 Index
Citation Counts
6
5
117
Rankings
Ranking Based On Selection: 61
Sara Mohamed Nader
Metrics
H-Index
i10 Index
Citation Counts
6
3
123
Rankings
Ranking Based On Selection: 62
Ali Km
Metrics
H-Index
i10 Index
Citation Counts
5
4
95
Rankings
Ranking Based On Selection: 63
Reem R.Tahon|Reem R.T.
Metrics
H-Index
i10 Index
Citation Counts
5
3
100
Rankings
Ranking Based On Selection: 64
Eman Rashad
Metrics
H-Index
i10 Index
Citation Counts
5
3
80
Rankings
Ranking Based On Selection: 65
Nageeb El Helaly Goher
Metrics
H-Index
i10 Index
Citation Counts
5
2
91
Rankings
Ranking Based On Selection: 66
Mariam F Farid
Metrics
H-Index
i10 Index
Citation Counts
3
2
40
Rankings
Ranking Based On Selection: 67
Mahmoud Saber Abdulkader
Metrics
H-Index
i10 Index
Citation Counts
3
1
24
veterinary internal medicine
small ruminant medicine
rumenology
pet animal pharmaceuticals
Rankings
Ranking Based On Selection: 68
Samar Elsharkawy
Metrics
H-Index
i10 Index
Citation Counts
3
0
23
Rankings
Ranking Based On Selection: 69
Sabah Ali
Metrics
H-Index
i10 Index
Citation Counts
2
1
31
Veterinary medicine
Microbiology
Microbiome
Biodegradation
poultry
Rankings
Ranking Based On Selection: 70
Mariam Gamal Zaki
Metrics
H-Index
i10 Index
Citation Counts
2
1
16
Rankings
Ranking Based On Selection: 71
Omar S.Saeed
Metrics
H-Index
i10 Index
Citation Counts
2
0
13
Rankings
Ranking Based On Selection: 72
Mohammed Awny Elkhiat
Metrics
H-Index
i10 Index
Citation Counts
1
1
38
Rankings
Ranking Based On Selection: 73
Alaa A Shaker|AL-wgaa, Alaa Amer
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
Rankings
Ranking Based On Selection: 75
Amal Hassan|AH Mostafa
Metrics
H-Index
i10 Index
Citation Counts
1
0
2