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 rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,121,264 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 5
Mahmoud Elrehany
Molecular biology - Cell biology - Nanotechnology - Genetic
Metrics
 
H-Index
i10 Index
Citation
21
35
1,263
* Rankings
Ranking Based On Selection: 6
Sayed Tantawy
Physiotherapy for Surgery
Pelvic Floor Dysfunctions
Cancer Rehabilitation
Exercises
Integumentary Physical Therap
Metrics
 
H-Index
i10 Index
Citation
21
28
1,326
* Rankings
Ranking Based On Selection: 7
Youssef W Naguib
Nanomedicine
Microencapsulation
Chemotherapeutics
Drug Delivery
Sustained Releas
Metrics
 
H-Index
i10 Index
Citation
19
30
1,280
* Rankings
Ranking Based On Selection: 13
Neven Aziz
Endocrinologyand Gasotransmitters (Carbon monoxide
Nitric Oxide and Hydrogen sulfide)
Metrics
 
H-Index
i10 Index
Citation
11
11
262
* Rankings
Ranking Based On Selection: 14
Adel Mohamed
Chemistry of natural products
Endophytic Fung
Metrics
 
H-Index
i10 Index
Citation
9
9
233
* Rankings
Ranking Based On Selection: 15
Islam M. Abdel-Rahman
Medicinal chemistry
Organic chemistry
Drug desig
Metrics
 
H-Index
i10 Index
Citation
8
8
276
* Rankings
Ranking Based On Selection: 16
Mohamed Nabil
Pharmacology
molecular biology
and neuro-degenerative diseas
Metrics
 
H-Index
i10 Index
Citation
8
8
237
* Rankings
Ranking Based On Selection: 17
Dalia H. Abu-Baih
Biochemistry
molecular biology
tissue culture
Cell biology
cancer Biolog
Metrics
 
H-Index
i10 Index
Citation
8
7
167
* Rankings
Ranking Based On Selection: 18
Omaima Kattabei
Research
scientific writing and criticis
Metrics
 
H-Index
i10 Index
Citation
8
7
293
* Rankings
Ranking Based On Selection: 24
Khaled Ayad
physical therapy for orthopedics and sports injurir
Metrics
 
H-Index
i10 Index
Citation
6
3
81
* Rankings
Ranking Based On Selection: 25
Sara Farhan
Microbiology and immunolog
Metrics
 
H-Index
i10 Index
Citation
5
5
198
Rankings
Ranking Based On Selection: 1
Usama Ramadan Abdelmohsen
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
50
191
9,001
Rankings
Ranking Based On Selection: 2
Gamal Aborahma
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
34
85
3,857
Rankings
Ranking Based On Selection: 3
Rehab Mahmoud Abd El Baky
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
25
44
2,102
Rankings
Ranking Based On Selection: 4
Hesham Salem
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
22
55
2,035
Rankings
Ranking Based On Selection: 5
Mahmoud Elrehany
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
21
35
1,263
Molecular biology - Cell biology - Nanotechnology - Genetic
Rankings
Ranking Based On Selection: 6
Sayed Tantawy
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
21
28
1,326
Physiotherapy for Surgery
Pelvic Floor Dysfunctions
Cancer Rehabilitation
Exercises
Integumentary Physical Therap
Rankings
Ranking Based On Selection: 7
Youssef W Naguib
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
19
30
1,280
Nanomedicine
Microencapsulation
Chemotherapeutics
Drug Delivery
Sustained Releas
Rankings
Ranking Based On Selection: 8
Ramadan Hemeida
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
17
23
1,147
Rankings
Ranking Based On Selection: 9
Emad Hamdi
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
14
18
983
Rankings
Ranking Based On Selection: 10
Mahmoud Omar
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
13
15
1,032
Rankings
Ranking Based On Selection: 11
Nawal A El Koussi
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
12
15
646
Rankings
Ranking Based On Selection: 12
Ramadan Yahia
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
11
12
330
Rankings
Ranking Based On Selection: 13
Neven Aziz
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
11
11
262
Endocrinologyand Gasotransmitters (Carbon monoxide
Nitric Oxide and Hydrogen sulfide)
Rankings
Ranking Based On Selection: 14
Adel Mohamed
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
9
9
233
Chemistry of natural products
Endophytic Fung
Rankings
Ranking Based On Selection: 15
Islam M. Abdel-Rahman
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
8
8
276
Medicinal chemistry
Organic chemistry
Drug desig
Rankings
Ranking Based On Selection: 16
Mohamed Nabil
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
8
8
237
Pharmacology
molecular biology
and neuro-degenerative diseas
Rankings
Ranking Based On Selection: 17
Dalia H. Abu-Baih
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
8
7
167
Biochemistry
molecular biology
tissue culture
Cell biology
cancer Biolog
Rankings
Ranking Based On Selection: 18
Omaima Kattabei
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
8
7
293
Research
scientific writing and criticis
Rankings
Ranking Based On Selection: 19
Sahar A. Mandour
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
7
7
277
Rankings
Ranking Based On Selection: 20
Reham Hassan Mohy El-Dein
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
7
4
124
Rankings
Ranking Based On Selection: 21
Fatma A. Abo Elsoud
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
6
5
140
Rankings
Ranking Based On Selection: 22
Hesham A. Abou-Zied
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
6
4
210
Rankings
Ranking Based On Selection: 23
Mohamed Mostafa Abdel Aleem
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
6
5
175
Rankings
Ranking Based On Selection: 24
Khaled Ayad
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
6
3
81
physical therapy for orthopedics and sports injurir
Rankings
Ranking Based On Selection: 25
Sara Farhan
Deraya University Menia Governorate, Egypt
Metrics
 
H-Index
i10 Index
Citation Counts
5
5
198
Microbiology and immunolog