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" (873,898 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.

* Rankings
Ranking Based On Selection: 1
Mohamed M. Rashad
Materials Science and Engineering
Nanotechnology
Electronic Materials
Advanced Materials
Nanomaterials
Metrics
H-Index
i10 Index
Citation
52
161
9,492
* Rankings
Ranking Based On Selection: 2
Said M. El-Sheikh
Chemistry- nanomaterials and nanotechnology- material science
Metrics
H-Index
i10 Index
Citation
42
107
5,000
* Rankings
Ranking Based On Selection: 3
IA Ibrahim
Minerals Processing
S/L separation
waste recycling
photocatalytic degradation of organic matrials
nanomaterials synthesis &
Metrics
H-Index
i10 Index
Citation
42
138
9,077
* Rankings
Ranking Based On Selection: 4
Zeinab Abdel Hamid
Surface protection & corrosion control include: - Electroplating and Electroless plating of metal and its alloys. - High temper
Metrics
H-Index
i10 Index
Citation
31
60
3,164
* Rankings
Ranking Based On Selection: 5
Ahmed Mourtada Elseman
Perovskite Solar cells
Semiconductor Materials
Nanomaterials
Materials Chemistry
Renewable
Metrics
H-Index
i10 Index
Citation
29
50
2,549
* Rankings
Ranking Based On Selection: 7
Suzan S. Ibrahim
Minerals Processing
Functional Fillers
Energy minerals
Specialty Silica
Mechanical Activation...
Metrics
H-Index
i10 Index
Citation
19
33
1,157

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* Rankings
Ranking Based On Selection: 12
Abdel-Khalek, MA
Waste water treatment
Mineral Processing
Metrics
H-Index
i10 Index
Citation
16
30
927
* Rankings
Ranking Based On Selection: 18
Ahmed Ismail Zaky Farahat
Thermo-mechanical processing of metals
Failure analysis
Wear behavior and Mechanical testing
Metrics
H-Index
i10 Index
Citation
13
17
702
* Rankings
Ranking Based On Selection: 19
Tamer M. Khedr
Photocatalysis
Solar fuel generation
Water oxidation
Water splitting
Environmental purification
Metrics
H-Index
i10 Index
Citation
12
18
754
* Rankings
Ranking Based On Selection: 24
Morsy Amin Morsy
failure analysis
Welding and joining
NDT
spare parts technology
surface engine
Metrics
H-Index
i10 Index
Citation
11
16
444
* Rankings
Ranking Based On Selection: 30
Haytham Elgazzar
Additive Manufacturing
Laser Material Processing
Nano materials preparation and chracterization
Metrics
H-Index
i10 Index
Citation
9
8
313
* Rankings
Ranking Based On Selection: 31
HM Abdel-Ghafar
Water and Environmental
Material Science
Separation and Purification
Hydrometallurgy
Minerals
Metrics
H-Index
i10 Index
Citation
8
8
419
* Rankings
Ranking Based On Selection: 32
Eman Hassan El-Shenawy
Materials science and engineering
Plastic Deformation
Metal Forming
Thermo-mechanical processing
Metrics
H-Index
i10 Index
Citation
8
7
361
* Rankings
Ranking Based On Selection: 37
Taher Elbitar
Metallurgical Engineering - Materials science and engineering - Plastic Deformation - Metal Forming and Heat Treatment
Metrics
H-Index
i10 Index
Citation
5
5
302
* Rankings
Ranking Based On Selection: 38
Heba Ali
minerals processing - extractive metallugy
Metrics
H-Index
i10 Index
Citation
5
3
63
* Rankings
Ranking Based On Selection: 39
Mona Hasan Gomaa
Surface Protection
Corrosion Control
Composite Coating
Superhydrophobic coating
Metrics
H-Index
i10 Index
Citation
5
2
90
* Rankings
Ranking Based On Selection: 41
Dina El-Sayed
Hydrometallurgy
Mineral processing
Water treatment
Electrodeposition of hydroxyapatite
Metrics
H-Index
i10 Index
Citation
4
2
45
* Rankings
Ranking Based On Selection: 43
Tarek A. Ali El-Barbary
Hydrometallurgy
Extraction of metal by solvent extraction
Prparation of inorganic chemicals
Leaching of Ore using microorgani
Metrics
H-Index
i10 Index
Citation
4
2
54
* Rankings
Ranking Based On Selection: 44
Saied Elghazaly
steels..heat treatment..composite materials..mechanical properties...super alloys...casting.
Metrics
H-Index
i10 Index
Citation
4
1
37
* Rankings
Ranking Based On Selection: 46
Hamdy Am Sayedahmed
Network
Artificial Neural Networks
Machine Learning
Fuzzy Logic
Multi-agent System
Metrics
H-Index
i10 Index
Citation
3
0
20
Rankings
Ranking Based On Selection: 1
Mohamed M. Rashad
Metrics
H-Index
i10 Index
Citation Counts
52
161
9,492
Materials Science and Engineering
Nanotechnology
Electronic Materials
Advanced Materials
Nanomaterials
Rankings
Ranking Based On Selection: 2
Said M. El-Sheikh
Metrics
H-Index
i10 Index
Citation Counts
42
107
5,000
Chemistry- nanomaterials and nanotechnology- material science
Rankings
Ranking Based On Selection: 3
IA Ibrahim
Metrics
H-Index
i10 Index
Citation Counts
42
138
9,077
Minerals Processing
S/L separation
waste recycling
photocatalytic degradation of organic matrials
nanomaterials synthesis &
Rankings
Ranking Based On Selection: 4
Zeinab Abdel Hamid
Metrics
H-Index
i10 Index
Citation Counts
31
60
3,164
Surface protection & corrosion control include: - Electroplating and Electroless plating of metal and its alloys. - High temper
Rankings
Ranking Based On Selection: 5
Ahmed Mourtada Elseman
Metrics
H-Index
i10 Index
Citation Counts
29
50
2,549
Perovskite Solar cells
Semiconductor Materials
Nanomaterials
Materials Chemistry
Renewable
Rankings
Ranking Based On Selection: 7
Suzan S. Ibrahim
Metrics
H-Index
i10 Index
Citation Counts
19
33
1,157
Minerals Processing
Functional Fillers
Energy minerals
Specialty Silica
Mechanical Activation...
Rankings
Ranking Based On Selection: 8
Sabah M.Abdelbasir
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,527
Electrochemical Processing
Rankings
Ranking Based On Selection: 9
Ramadan A. Geioushy
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,027
Nanomaterials
Carbon
2D materials
Catalysis
CO2 Conversion
Rankings
Ranking Based On Selection: 10
Chemical Engineer and agglomeration of fine material
water treatment

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Rankings
Ranking Based On Selection: 11
Shimaa El-Hadad
Metrics
H-Index
i10 Index
Citation Counts
17
28
837
Rankings
Ranking Based On Selection: 12
Abdel-Khalek, MA
Metrics
H-Index
i10 Index
Citation Counts
16
30
927
Waste water treatment
Mineral Processing
Rankings
Ranking Based On Selection: 13
Elsayed, EM
Metrics
H-Index
i10 Index
Citation Counts
14
16
628
Electrochemistry-Mineral technology-Electroprocessing
Rankings
Ranking Based On Selection: 15
KA Selim
Metrics
H-Index
i10 Index
Citation Counts
13
15
474
Mineral Processing
Biotechnology
Surface modification
Rankings
Ranking Based On Selection: 16
Hossam Halfa
Metrics
H-Index
i10 Index
Citation Counts
13
14
524
Rankings
Ranking Based On Selection: 18
Ahmed Ismail Zaky Farahat
Metrics
H-Index
i10 Index
Citation Counts
13
17
702
Thermo-mechanical processing of metals
Failure analysis
Wear behavior and Mechanical testing
Rankings
Ranking Based On Selection: 19
Tamer M. Khedr
Metrics
H-Index
i10 Index
Citation Counts
12
18
754
Photocatalysis
Solar fuel generation
Water oxidation
Water splitting
Environmental purification
Rankings
Ranking Based On Selection: 21
Ayman Elsayed
Metrics
H-Index
i10 Index
Citation Counts
11
13
576
Rankings
Ranking Based On Selection: 22
Mohamed Waly
Metrics
H-Index
i10 Index
Citation Counts
11
12
478
Foundry Technology
Manufacture Technology
Materials Science and Engineering
Rankings
Ranking Based On Selection: 24
Morsy Amin Morsy
Metrics
H-Index
i10 Index
Citation Counts
11
16
444
failure analysis
Welding and joining
NDT
spare parts technology
surface engine
Rankings
Ranking Based On Selection: 25
Rankings
Ranking Based On Selection: 26
Taha Mattar
Metrics
H-Index
i10 Index
Citation Counts
10
10
393
Rankings
Ranking Based On Selection: 28
Khalid Hafez
Metrics
H-Index
i10 Index
Citation Counts
10
10
351
Rankings
Ranking Based On Selection: 29
Tawfik Refaat Boulos
Metrics
H-Index
i10 Index
Citation Counts
10
10
270
Rankings
Ranking Based On Selection: 30
Haytham Elgazzar
Metrics
H-Index
i10 Index
Citation Counts
9
8
313
Additive Manufacturing
Laser Material Processing
Nano materials preparation and chracterization
Rankings
Ranking Based On Selection: 31
HM Abdel-Ghafar
Metrics
H-Index
i10 Index
Citation Counts
8
8
419
Water and Environmental
Material Science
Separation and Purification
Hydrometallurgy
Minerals
Rankings
Ranking Based On Selection: 32
Eman Hassan El-Shenawy
Metrics
H-Index
i10 Index
Citation Counts
8
7
361
Materials science and engineering
Plastic Deformation
Metal Forming
Thermo-mechanical processing
Rankings
Ranking Based On Selection: 33
khaled Ezzat yassin
Metrics
H-Index
i10 Index
Citation Counts
7
5
143
Mineral Processing
Bio-benefication
Rankings
Ranking Based On Selection: 34
F. Hanna
Metrics
H-Index
i10 Index
Citation Counts
7
5
355
Rankings
Ranking Based On Selection: 35
Maha El-Meligy
Metrics
H-Index
i10 Index
Citation Counts
6
3
87
mechanical engineering
material science
metal forming& heat treatment
Rankings
Ranking Based On Selection: 36
Abourehab Hammam
Metrics
H-Index
i10 Index
Citation Counts
5
4
82
Rankings
Ranking Based On Selection: 37
Taher Elbitar
Metrics
H-Index
i10 Index
Citation Counts
5
5
302
Metallurgical Engineering - Materials science and engineering - Plastic Deformation - Metal Forming and Heat Treatment
Rankings
Ranking Based On Selection: 38
Heba Ali
Metrics
H-Index
i10 Index
Citation Counts
5
3
63
minerals processing - extractive metallugy
Rankings
Ranking Based On Selection: 39
Mona Hasan Gomaa
Metrics
H-Index
i10 Index
Citation Counts
5
2
90
Surface Protection
Corrosion Control
Composite Coating
Superhydrophobic coating
Rankings
Ranking Based On Selection: 40
Samah S. Abdallah
Metrics
H-Index
i10 Index
Citation Counts
4
2
51
Bio-technology
surface modification
mineral processing
Rankings
Ranking Based On Selection: 41
Dina El-Sayed
Metrics
H-Index
i10 Index
Citation Counts
4
2
45
Hydrometallurgy
Mineral processing
Water treatment
Electrodeposition of hydroxyapatite
Rankings
Ranking Based On Selection: 43
Tarek A. Ali El-Barbary
Metrics
H-Index
i10 Index
Citation Counts
4
2
54
Hydrometallurgy
Extraction of metal by solvent extraction
Prparation of inorganic chemicals
Leaching of Ore using microorgani
Rankings
Ranking Based On Selection: 44
Saied Elghazaly
Metrics
H-Index
i10 Index
Citation Counts
4
1
37
steels..heat treatment..composite materials..mechanical properties...super alloys...casting.
Rankings
Ranking Based On Selection: 45
Amira Elmaddah
Metrics
H-Index
i10 Index
Citation Counts
3
2
116
Rankings
Ranking Based On Selection: 46
Hamdy Am Sayedahmed
Metrics
H-Index
i10 Index
Citation Counts
3
0
20
Network
Artificial Neural Networks
Machine Learning
Fuzzy Logic
Multi-agent System
Rankings
Ranking Based On Selection: 48
Islam Salem
Metrics
H-Index
i10 Index
Citation Counts
2
0
4
Rankings
Ranking Based On Selection: 49
Mahmoud Sherif
Metrics
H-Index
i10 Index
Citation Counts
1
0
6
Rankings
Ranking Based On Selection: 50
Manal Abdel Rahim Hassan
Metrics
H-Index
i10 Index
Citation Counts
1
0
4