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" (936,900 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
Abdullah M Asiri
Photochemistry
Photochromic Materials
Thermochrmic Materials
Nanochemistry
Sensors
Metrics
H-Index
i10 Index
Citation
164
1,712
131,848
* Rankings
Ranking Based On Selection: 2
Mohammed Muzibur Rahman
Chemistry
Electrochemistry
Sensors & Biosensors
Nanomaterials
Environmental Science
Metrics
H-Index
i10 Index
Citation
80
429
26,096
* Rankings
Ranking Based On Selection: 6
Reda M El Shishtawy
Light harvesting systems using DSCs
Nanomaterials
Optoelectronic dyes
Conductive polymers
Photobiological Hydrogen Productio
Metrics
H-Index
i10 Index
Citation
48
130
6,657
* Rankings
Ranking Based On Selection: 7
Gamal A Mohamed
Chemistry of natural Products
Plants
Marine
and Fungi
Metrics
H-Index
i10 Index
Citation
45
200
7,989
* Rankings
Ranking Based On Selection: 8
MS El Shahawi
Analytical Chemistry
Environmental Chemistry
Surface modified Electrode
Spectroelectrochemistry
Metrics
H-Index
i10 Index
Citation
45
156
8,119
* Rankings
Ranking Based On Selection: 9
Mohamed Mokhtar Mohamed Mostafa
Chemistry
Materials Science
Chemical engineering
Catalysis
Nanomaterials
Metrics
H-Index
i10 Index
Citation
44
125
6,131

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* Rankings
Ranking Based On Selection: 11
MM Alam
Catalysis
Electrochemistry
Chemical & biosensors
Metal ion detection
Semiconductive metal oxides
Metrics
H-Index
i10 Index
Citation
35
80
3,377
* Rankings
Ranking Based On Selection: 12
Muhammad Nadeem Arshad
Chemistry
Crystallography
Organic Synthesis
solid state Chemistry
Metrics
H-Index
i10 Index
Citation
35
109
4,158
* Rankings
Ranking Based On Selection: 13
Nuha Wazzan
Computational Chemistry
Materials science
Photovoltaics
Water splitting
Batteries
Metrics
H-Index
i10 Index
Citation
34
78
3,409
* Rankings
Ranking Based On Selection: 15
Ihsanullah Daur
Organic Agriculture and Natural Resources
Metrics
H-Index
i10 Index
Citation
34
60
4,581
* Rankings
Ranking Based On Selection: 16
Rabih O Al Kaysi
Photomechanical Crystals
Organic Chemistry
Nanomaterials
Drug delivery
Organic Synthesis
Metrics
H-Index
i10 Index
Citation
34
56
4,186
* Rankings
Ranking Based On Selection: 18
Tariq Rashad Sobahi
Synthesis and NOE and 2D-NMR Spectroscopic Studies of some organic compounds. Asymmetric aldol reactions of N-propionyl derivati
Metrics
H-Index
i10 Index
Citation
31
59
2,715
* Rankings
Ranking Based On Selection: 19
Saadullah G Aziz
Physical Chemistry - Computational Chemistry
Metrics
H-Index
i10 Index
Citation
29
52
2,729
* Rankings
Ranking Based On Selection: 20
Samia A Kosa
Photocatalysis
nanomaterials
degradation
Metrics
H-Index
i10 Index
Citation
29
51
2,881
* Rankings
Ranking Based On Selection: 21
Mostafa A Hussien
Thermal analysis
metal complex
computational chemistry
molecular docking
metal drug complexes
Metrics
H-Index
i10 Index
Citation
26
61
1,882
* Rankings
Ranking Based On Selection: 23
Sami Ullah Rather
Catalytic adsorption of hydrogen
high pressure adsorption experimental measurements
synthesis of
Metrics
H-Index
i10 Index
Citation
26
39
2,063
* Rankings
Ranking Based On Selection: 25
Ahmed EM Mekky
Organic Synthesis
Organic Spectroscopy
Structure elucidation
Biological and Medicine Chemistry
Metrics
H-Index
i10 Index
Citation
24
59
1,694
* Rankings
Ranking Based On Selection: 27
Jamal Lasri
Organic Chemistry
Coordination Chemistry
Metal-Mediated Synthesis
Catalysis
Metrics
H-Index
i10 Index
Citation
24
41
1,369
* Rankings
Ranking Based On Selection: 29
Kheireddine El Boubbou
Organic Chemistry
Nanoscience
Nanomedicine
Biomaterials
Functional Nanomaterials
Metrics
H-Index
i10 Index
Citation
22
27
2,572
* Rankings
Ranking Based On Selection: 30
Rifaat Hilal
Molecular Electronic Structure and Dynamics.
Metrics
H-Index
i10 Index
Citation
21
39
1,342
* Rankings
Ranking Based On Selection: 32
Abdulaziz Saleh Bashammakh
analytical chemistry
environmental science
marine chemistry
analytical biochemistry
Metrics
H-Index
i10 Index
Citation
19
26
2,056
* Rankings
Ranking Based On Selection: 34
Muhammad Tahir Soomro
Electrochemistry
Electroanalytical Chemistry
Photocatalysis
Nanostructure Materials
Metrics
H-Index
i10 Index
Citation
18
25
1,043
* Rankings
Ranking Based On Selection: 35
Shaaban Ak Elroby
Computational Chemistry
Solar Cell
Proton Transfer
Metrics
H-Index
i10 Index
Citation
18
33
1,019
* Rankings
Ranking Based On Selection: 37
Abdesslem Jedidi
Computational Chemistry
Solid State
Surface Reactivity
Solid State NMR
Metrics
H-Index
i10 Index
Citation
16
25
2,080
* Rankings
Ranking Based On Selection: 40
Saif Abdullah Alharthy
environmental Toxicants such as PFAS
metals
and others. animal studies
cell lines
Clinical Chem.
Metrics
H-Index
i10 Index
Citation
13
15
384
* Rankings
Ranking Based On Selection: 41
Tahir Ali Sheikh
Analytical Chemistry
Nanomaterial & environmental chemistry
crystallography
Metrics
H-Index
i10 Index
Citation
13
16
929
* Rankings
Ranking Based On Selection: 47
Ahmed Aljohani
Glucose and lipid metabolism
insulin signaling and Type 2 diabetes
Metrics
H-Index
i10 Index
Citation
5
5
343
* Rankings
Ranking Based On Selection: 48
Mohammed Almtiri
Organic synthesis
Polymer Material
Supercapacitor Material
Biomedical Materials.
Metrics
H-Index
i10 Index
Citation
5
4
142
Amani Y Alhalwani
Bioanalytical Chemistry
Analytical Chemistry
Type 2 diabetes
& ophthalmology Science
Metrics
H-Index
i10 Index
Citation
4
2
55
Amal Aladwani
Analytical chemistry
Natural products
Material science
Metrics
H-Index
i10 Index
Citation
1
1
24
Rankings
Ranking Based On Selection: 1
Abdullah M Asiri
Metrics
H-Index
i10 Index
Citation Counts
164
1,712
131,848
Photochemistry
Photochromic Materials
Thermochrmic Materials
Nanochemistry
Sensors
Rankings
Ranking Based On Selection: 2
Mohammed Muzibur Rahman
Metrics
H-Index
i10 Index
Citation Counts
80
429
26,096
Chemistry
Electrochemistry
Sensors & Biosensors
Nanomaterials
Environmental Science
Rankings
Ranking Based On Selection: 3
Shaeel Al Thabaiti
Metrics
H-Index
i10 Index
Citation Counts
54
165
9,482
Rankings
Ranking Based On Selection: 4
Abdulmohsen Ali Alshehri
Metrics
H-Index
i10 Index
Citation Counts
49
119
7,744
Advance Materials
Nanotechnology
Catalysis.
Rankings
Ranking Based On Selection: 5
Hadi M Marwani
Metrics
H-Index
i10 Index
Citation Counts
49
183
8,481
Rankings
Ranking Based On Selection: 6
Reda M El Shishtawy
Metrics
H-Index
i10 Index
Citation Counts
48
130
6,657
Light harvesting systems using DSCs
Nanomaterials
Optoelectronic dyes
Conductive polymers
Photobiological Hydrogen Productio
Rankings
Ranking Based On Selection: 7
Gamal A Mohamed
Metrics
H-Index
i10 Index
Citation Counts
45
200
7,989
Chemistry of natural Products
Plants
Marine
and Fungi
Rankings
Ranking Based On Selection: 8
MS El Shahawi
Metrics
H-Index
i10 Index
Citation Counts
45
156
8,119
Analytical Chemistry
Environmental Chemistry
Surface modified Electrode
Spectroelectrochemistry
Rankings
Ranking Based On Selection: 9
Mohamed Mokhtar Mohamed Mostafa
Metrics
H-Index
i10 Index
Citation Counts
44
125
6,131
Chemistry
Materials Science
Chemical engineering
Catalysis
Nanomaterials
Rankings
Ranking Based On Selection: 10
Zaheer Khan
Metrics
H-Index
i10 Index
Citation Counts
43
195
8,132

Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.

Rankings
Ranking Based On Selection: 11
MM Alam
Metrics
H-Index
i10 Index
Citation Counts
35
80
3,377
Catalysis
Electrochemistry
Chemical & biosensors
Metal ion detection
Semiconductive metal oxides
Rankings
Ranking Based On Selection: 12
Muhammad Nadeem Arshad
Metrics
H-Index
i10 Index
Citation Counts
35
109
4,158
Chemistry
Crystallography
Organic Synthesis
solid state Chemistry
Rankings
Ranking Based On Selection: 13
Nuha Wazzan
Metrics
H-Index
i10 Index
Citation Counts
34
78
3,409
Computational Chemistry
Materials science
Photovoltaics
Water splitting
Batteries
Rankings
Ranking Based On Selection: 14
Maqsood Ahmad Malik
Metrics
H-Index
i10 Index
Citation Counts
34
77
5,140
Rankings
Ranking Based On Selection: 15
Ihsanullah Daur
Metrics
H-Index
i10 Index
Citation Counts
34
60
4,581
Rankings
Ranking Based On Selection: 16
Rabih O Al Kaysi
Metrics
H-Index
i10 Index
Citation Counts
34
56
4,186
Photomechanical Crystals
Organic Chemistry
Nanomaterials
Drug delivery
Organic Synthesis
Rankings
Ranking Based On Selection: 17
Salih S Al Juaid
Metrics
H-Index
i10 Index
Citation Counts
34
85
3,586
Rankings
Ranking Based On Selection: 18
Tariq Rashad Sobahi
Metrics
H-Index
i10 Index
Citation Counts
31
59
2,715
Synthesis and NOE and 2D-NMR Spectroscopic Studies of some organic compounds. Asymmetric aldol reactions of N-propionyl derivati
Rankings
Ranking Based On Selection: 19
Saadullah G Aziz
Metrics
H-Index
i10 Index
Citation Counts
29
52
2,729
Physical Chemistry - Computational Chemistry
Rankings
Ranking Based On Selection: 20
Samia A Kosa
Metrics
H-Index
i10 Index
Citation Counts
29
51
2,881
Rankings
Ranking Based On Selection: 21
Mostafa A Hussien
Metrics
H-Index
i10 Index
Citation Counts
26
61
1,882
Thermal analysis
metal complex
computational chemistry
molecular docking
metal drug complexes
Rankings
Ranking Based On Selection: 22
JA Khan
Metrics
H-Index
i10 Index
Citation Counts
26
59
2,845
Rankings
Ranking Based On Selection: 23
Sami Ullah Rather
Metrics
H-Index
i10 Index
Citation Counts
26
39
2,063
Catalytic adsorption of hydrogen
high pressure adsorption experimental measurements
synthesis of
Rankings
Ranking Based On Selection: 24
Abdulrahim Al Zahrani
Metrics
H-Index
i10 Index
Citation Counts
25
50
2,306
Rankings
Ranking Based On Selection: 25
Ahmed EM Mekky
Metrics
H-Index
i10 Index
Citation Counts
24
59
1,694
Organic Synthesis
Organic Spectroscopy
Structure elucidation
Biological and Medicine Chemistry
Rankings
Ranking Based On Selection: 26
Usama W Hawas
Metrics
H-Index
i10 Index
Citation Counts
24
51
1,902
Rankings
Ranking Based On Selection: 27
Jamal Lasri
Metrics
H-Index
i10 Index
Citation Counts
24
41
1,369
Organic Chemistry
Coordination Chemistry
Metal-Mediated Synthesis
Catalysis
Rankings
Ranking Based On Selection: 28
Lassaad Gzara
Metrics
H-Index
i10 Index
Citation Counts
22
28
2,122
Rankings
Ranking Based On Selection: 29
Kheireddine El Boubbou
Metrics
H-Index
i10 Index
Citation Counts
22
27
2,572
Organic Chemistry
Nanoscience
Nanomedicine
Biomaterials
Functional Nanomaterials
Rankings
Ranking Based On Selection: 30
Rifaat Hilal
Metrics
H-Index
i10 Index
Citation Counts
21
39
1,342
Molecular Electronic Structure and Dynamics.
Rankings
Ranking Based On Selection: 31
Aisha Ganash
Metrics
H-Index
i10 Index
Citation Counts
20
28
941
Rankings
Ranking Based On Selection: 32
Abdulaziz Saleh Bashammakh
Metrics
H-Index
i10 Index
Citation Counts
19
26
2,056
analytical chemistry
environmental science
marine chemistry
analytical biochemistry
Rankings
Ranking Based On Selection: 33
Qana A. Alsulami|Qana A. Alsulami
Metrics
H-Index
i10 Index
Citation Counts
18
32
1,367
Polymers- Photochemistry- nanocomposite-catalysts
Rankings
Ranking Based On Selection: 34
Muhammad Tahir Soomro
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,043
Electrochemistry
Electroanalytical Chemistry
Photocatalysis
Nanostructure Materials
Rankings
Ranking Based On Selection: 35
Shaaban Ak Elroby
Metrics
H-Index
i10 Index
Citation Counts
18
33
1,019
Computational Chemistry
Solar Cell
Proton Transfer
Rankings
Ranking Based On Selection: 36
Islam Hamdy
Metrics
H-Index
i10 Index
Citation Counts
17
22
812
Rankings
Ranking Based On Selection: 37
Abdesslem Jedidi
Metrics
H-Index
i10 Index
Citation Counts
16
25
2,080
Computational Chemistry
Solid State
Surface Reactivity
Solid State NMR
Rankings
Ranking Based On Selection: 38
Hasan Amron Ewais
Metrics
H-Index
i10 Index
Citation Counts
15
22
535
Rankings
Ranking Based On Selection: 39
Osama I Alwassil
Metrics
H-Index
i10 Index
Citation Counts
14
19
596
Rankings
Ranking Based On Selection: 40
Saif Abdullah Alharthy
Metrics
H-Index
i10 Index
Citation Counts
13
15
384
environmental Toxicants such as PFAS
metals
and others. animal studies
cell lines
Clinical Chem.
Rankings
Ranking Based On Selection: 41
Tahir Ali Sheikh
Metrics
H-Index
i10 Index
Citation Counts
13
16
929
Analytical Chemistry
Nanomaterial & environmental chemistry
crystallography
Rankings
Ranking Based On Selection: 42
Zm Al Amshany
Metrics
H-Index
i10 Index
Citation Counts
12
15
694
Rankings
Ranking Based On Selection: 43
Hind Alshaikh
Metrics
H-Index
i10 Index
Citation Counts
10
10
480
Rankings
Ranking Based On Selection: 44
Abeer N. Al-Romaizan
Metrics
H-Index
i10 Index
Citation Counts
10
10
309
Rankings
Ranking Based On Selection: 45
Mohammed SM Alsaadi
Metrics
H-Index
i10 Index
Citation Counts
10
10
455
Rankings
Ranking Based On Selection: 46
Nahed Bawakid
Metrics
H-Index
i10 Index
Citation Counts
9
7
294
Rankings
Ranking Based On Selection: 47
Ahmed Aljohani
Metrics
H-Index
i10 Index
Citation Counts
5
5
343
Glucose and lipid metabolism
insulin signaling and Type 2 diabetes
Rankings
Ranking Based On Selection: 48
Mohammed Almtiri
Metrics
H-Index
i10 Index
Citation Counts
5
4
142
Organic synthesis
Polymer Material
Supercapacitor Material
Biomedical Materials.
Rankings
Ranking Based On Selection: 49
Amani Y Alhalwani
Metrics
H-Index
i10 Index
Citation Counts
4
2
55
Bioanalytical Chemistry
Analytical Chemistry
Type 2 diabetes
& ophthalmology Science
Rankings
Ranking Based On Selection: 50
Tarafah Hamdan
Metrics
H-Index
i10 Index
Citation Counts
3
2
49
analytical chemistry
Nanoparticles modified electrodes
Rankings
Ranking Based On Selection: 51
Sawsan Alelaiwi
Metrics
H-Index
i10 Index
Citation Counts
2
1
14
Rankings
Ranking Based On Selection: 53
Amal Aladwani
Metrics
H-Index
i10 Index
Citation Counts
1
1
24
Analytical chemistry
Natural products
Material science
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