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.

* Rankings
Ranking Based On Selection :1
Kosar Hikmat Hama Aziz
Environmental Chemistry
Analytical Chemistry
Water treatment by Advanced Oxidation Processes
Metrics
H-Index
i10 Index
Citation
27
33
2,098
* Rankings
Ranking Based On Selection :2
Mohammad Raziq Al Imam
Supramolecular Chemistry
Organic Synthesis
Polymer
Metrics
H-Index
i10 Index
Citation
24
30
3,432
* Rankings
Ranking Based On Selection :3
WO Karim
Analytical Chemistry
Electrochemistry
Ionic Liquids
Metrics
H-Index
i10 Index
Citation
21
31
1,576
* Rankings
Ranking Based On Selection :5
Sewara Mohammed
Organic Chemistry
Synthetic Chemistry
Carbon Dots
Nanocomposites
Metrics
H-Index
i10 Index
Citation
13
15
677
Dler Salh
Environmental Chemistry
Clay Chemistry
and Analytical Chemistry
Metrics
H-Index
i10 Index
Citation
9
8
255
Muhammad Salih Mustafa
Analytical Chemistry
Spectroscopy
Electrochemical Methods
Green Analytical Chemistry Metrics
Metrics
H-Index
i10 Index
Citation
8
7
307
Bayazeed Hassan Abdullah
Inorganic Chemistry
Inorganic Biochemistry
Quantum chemistry
Molecular symmetry
Kinetics and mechanism.
Metrics
H-Index
i10 Index
Citation
8
6
191
Ghafoor Ahmad Mam Rasul
Soil Chemistry
Soil Fertility and Fertilizers
Plant Nutration
Metrics
H-Index
i10 Index
Citation
7
6
199
Sozan Najib Abdullah
Hyperbranched polymers
organic solar cells
Supramolecular chemistry
organic synthesis
Organic
Metrics
H-Index
i10 Index
Citation
7
5
301
Kawan F. Kayani
Bioanalytical Chemistry
Sensors
Nanomaterials
Metal-Organic Frameworks
Quantum Dots
Metrics
H-Index
i10 Index
Citation
7
4
128
Rebaz F. Hamarawf
Bioinorganic and Organometallic Chemistry
Biochemistry
Analytical Chemistry
Clinical Chemistry
Metrics
H-Index
i10 Index
Citation
6
4
339
Diary Ibrahim Tofiq
Bioinorganic Chemistry
Metal Activated Enzymes
Impact of metal Ion in Environmental and Health
Metrics
H-Index
i10 Index
Citation
6
5
227
Nazk Mohammed Aziz
Inorganic Chemistry
Coordination Chemistry
and Organometallic Chemistry
Metrics
H-Index
i10 Index
Citation
5
5
149
Kareem Jibrael
physical chemistry and dye sensitized solar cellsm
kurdistan region
Iraq
Metrics
H-Index
i10 Index
Citation
4
4
164
Karzan A. Abdalkarim
Inorganic Chemistry
Coordination Compounds
Metal Organic Framework
Catalysis
Metrics
H-Index
i10 Index
Citation
4
4
82
Srood Omer Rashid
Synthetic Chemistry
Organic Chemistry
Nano & Materials Enhancement
Spectroscopy
Metrics
H-Index
i10 Index
Citation
4
1
39
Rebwar M.Rashid
Pharmaceutical Organic Chemistry
Synthetic organic chemistry
Chemoinformatic
Metrics
H-Index
i10 Index
Citation
3
3
49
Khanda Fm Amin
inorganic chemistry
analytical chemistry
pharmaceutical analysis
chemometry
Metrics
H-Index
i10 Index
Citation
3
1
36
Rankings
Ranking Based On Selection: 1
Kosar Hikmat Hama Aziz
Metrics
H-Index
i10 Index
Citation Counts
27
33
2,098
Environmental Chemistry
Analytical Chemistry
Water treatment by Advanced Oxidation Processes
Rankings
Ranking Based On Selection: 2
Mohammad Raziq Al Imam
Metrics
H-Index
i10 Index
Citation Counts
24
30
3,432
Supramolecular Chemistry
Organic Synthesis
Polymer
Rankings
Ranking Based On Selection: 3
WO Karim
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,576
Analytical Chemistry
Electrochemistry
Ionic Liquids
Rankings
Ranking Based On Selection: 4
Hewa Othman Ghareeb Salih
Metrics
H-Index
i10 Index
Citation Counts
14
15
657
Rankings
Ranking Based On Selection: 5
Sewara Mohammed
Metrics
H-Index
i10 Index
Citation Counts
13
15
677
Organic Chemistry
Synthetic Chemistry
Carbon Dots
Nanocomposites
Rankings
Ranking Based On Selection: 6
Baram Ahmed Hamah Ameen|Baram Jaff
Metrics
H-Index
i10 Index
Citation Counts
11
13
288
Rankings
Ranking Based On Selection: 7
Dler Salh
Metrics
H-Index
i10 Index
Citation Counts
9
8
255
Environmental Chemistry
Clay Chemistry
and Analytical Chemistry
Rankings
Ranking Based On Selection: 8
Muhammad Salih Mustafa
Metrics
H-Index
i10 Index
Citation Counts
8
7
307
Analytical Chemistry
Spectroscopy
Electrochemical Methods
Green Analytical Chemistry Metrics
Rankings
Ranking Based On Selection: 9
Bayazeed Hassan Abdullah
Metrics
H-Index
i10 Index
Citation Counts
8
6
191
Inorganic Chemistry
Inorganic Biochemistry
Quantum chemistry
Molecular symmetry
Kinetics and mechanism.
Rankings
Ranking Based On Selection: 10
Ghafoor Ahmad Mam Rasul
Metrics
H-Index
i10 Index
Citation Counts
7
6
199
Soil Chemistry
Soil Fertility and Fertilizers
Plant Nutration
Rankings
Ranking Based On Selection: 11
Sozan Najib Abdullah
Metrics
H-Index
i10 Index
Citation Counts
7
5
301
Hyperbranched polymers
organic solar cells
Supramolecular chemistry
organic synthesis
Organic
Rankings
Ranking Based On Selection: 12
Kawan F. Kayani
Metrics
H-Index
i10 Index
Citation Counts
7
4
128
Bioanalytical Chemistry
Sensors
Nanomaterials
Metal-Organic Frameworks
Quantum Dots
Rankings
Ranking Based On Selection: 13
Ahmed I Khwakaram
Metrics
H-Index
i10 Index
Citation Counts
6
6
201
Rankings
Ranking Based On Selection: 14
Rebaz F. Hamarawf
Metrics
H-Index
i10 Index
Citation Counts
6
4
339
Bioinorganic and Organometallic Chemistry
Biochemistry
Analytical Chemistry
Clinical Chemistry
Rankings
Ranking Based On Selection: 15
Diary Ibrahim Tofiq
Metrics
H-Index
i10 Index
Citation Counts
6
5
227
Bioinorganic Chemistry
Metal Activated Enzymes
Impact of metal Ion in Environmental and Health
Rankings
Ranking Based On Selection: 16
Nazk Mohammed Aziz
Metrics
H-Index
i10 Index
Citation Counts
5
5
149
Inorganic Chemistry
Coordination Chemistry
and Organometallic Chemistry
Rankings
Ranking Based On Selection: 17
Kareem Jibrael
Metrics
H-Index
i10 Index
Citation Counts
4
4
164
physical chemistry and dye sensitized solar cellsm
kurdistan region
Iraq
Rankings
Ranking Based On Selection: 18
Karzan A. Abdalkarim
Metrics
H-Index
i10 Index
Citation Counts
4
4
82
Inorganic Chemistry
Coordination Compounds
Metal Organic Framework
Catalysis
Rankings
Ranking Based On Selection: 19
Srood Omer Rashid
Metrics
H-Index
i10 Index
Citation Counts
4
1
39
Synthetic Chemistry
Organic Chemistry
Nano & Materials Enhancement
Spectroscopy
Rankings
Ranking Based On Selection: 20
Rebwar M.Rashid
Metrics
H-Index
i10 Index
Citation Counts
3
3
49
Pharmaceutical Organic Chemistry
Synthetic organic chemistry
Chemoinformatic
Rankings
Ranking Based On Selection: 21
Khanda Fm Amin
Metrics
H-Index
i10 Index
Citation Counts
3
1
36
inorganic chemistry
analytical chemistry
pharmaceutical analysis
chemometry
Rankings
Ranking Based On Selection: 22
Sirwa Majeed
Metrics
H-Index
i10 Index
Citation Counts
3
0
26