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" (873,688 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
Roja Rahimi
phytotherapy
traditional medicine
Phytopharmacology
Metrics
H-Index
i10 Index
Citation
69
160
15,235
* Rankings
Ranking Based On Selection: 2
Ahmad R Dehpour
Nitric Oxide
Opioids
Seizures
Cholestasis
Cirrhosis
Metrics
H-Index
i10 Index
Citation
67
602
23,682
* Rankings
Ranking Based On Selection: 5
Rezayat Sm
Pharmacology
Toxicology
nanomedicine
nanotechnology
Pharmacutics
Metrics
H-Index
i10 Index
Citation
46
134
6,566
* Rankings
Ranking Based On Selection: 9
Hamed Hi Aminjan
Molecular Toxicology & Pharmacology
Clinical Toxicology & Diseases
Cancer
Aging
Metrics
H-Index
i10 Index
Citation
28
45
2,606

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* Rankings
Ranking Based On Selection: 13
Mohsen Chamanara
Pharmacology
gastrointestinal pharmacology
Ulcerative colitis
Seizures
Metrics
H-Index
i10 Index
Citation
19
33
1,303
* Rankings
Ranking Based On Selection: 14
Rohollah Hosseini
nephrotoxicity
developing of methods and their applicating for analysis of drugs in biological fluids by GC and HPLC
Assay of
Metrics
H-Index
i10 Index
Citation
19
25
2,156
Yahya Jand
melatonin
kynurenine pathway
neuroscience
neuroinflammation
Metrics
H-Index
i10 Index
Citation
11
13
498
Tina Didari
Pharmacology
Pain management
Clinical research
Inflammation
Oncology
Metrics
H-Index
i10 Index
Citation
9
9
1,152
Shiva Ghareghani
Human health
Analytical toxicology
Food analysis
Drug analysis
Metrics
H-Index
i10 Index
Citation
4
3
41
Sara Kheirandish
Food & Drug Analysis
Method Validation
Forensic Toxicology
Metrics
H-Index
i10 Index
Citation
2
2
21
Rankings
Ranking Based On Selection: 1
Roja Rahimi
Metrics
H-Index
i10 Index
Citation Counts
69
160
15,235
phytotherapy
traditional medicine
Phytopharmacology
Rankings
Ranking Based On Selection: 2
Ahmad R Dehpour
Metrics
H-Index
i10 Index
Citation Counts
67
602
23,682
Nitric Oxide
Opioids
Seizures
Cholestasis
Cirrhosis
Rankings
Ranking Based On Selection: 3
Seyed Nasser Ostad
Metrics
H-Index
i10 Index
Citation Counts
53
180
9,438
Rankings
Ranking Based On Selection: 4
Mahmoud Ghazi Khansari
Metrics
H-Index
i10 Index
Citation Counts
47
141
6,963
Rankings
Ranking Based On Selection: 5
Rezayat Sm
Metrics
H-Index
i10 Index
Citation Counts
46
134
6,566
Pharmacology
Toxicology
nanomedicine
nanotechnology
Pharmacutics
Rankings
Ranking Based On Selection: 6
Shahram Ejtemaei Mehr
Metrics
H-Index
i10 Index
Citation Counts
37
93
3,783
Rankings
Ranking Based On Selection: 7
Nima Sanadgol
Metrics
H-Index
i10 Index
Citation Counts
33
62
4,027
Rankings
Ranking Based On Selection: 8
Hamed Shafaroodi
Metrics
H-Index
i10 Index
Citation Counts
30
76
2,852
Rankings
Ranking Based On Selection: 9
Hamed Hi Aminjan
Metrics
H-Index
i10 Index
Citation Counts
28
45
2,606
Molecular Toxicology & Pharmacology
Clinical Toxicology & Diseases
Cancer
Aging
Rankings
Ranking Based On Selection: 10
Sattar Ostadhadi
Metrics
H-Index
i10 Index
Citation Counts
24
47
1,448

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Rankings
Ranking Based On Selection: 11
Nastaran Rahimi
Metrics
H-Index
i10 Index
Citation Counts
22
40
1,372
Rankings
Ranking Based On Selection: 13
Mohsen Chamanara
Metrics
H-Index
i10 Index
Citation Counts
19
33
1,303
Pharmacology
gastrointestinal pharmacology
Ulcerative colitis
Seizures
Rankings
Ranking Based On Selection: 14
Rohollah Hosseini
Metrics
H-Index
i10 Index
Citation Counts
19
25
2,156
nephrotoxicity
developing of methods and their applicating for analysis of drugs in biological fluids by GC and HPLC
Assay of
Rankings
Ranking Based On Selection: 15
Seyyedeh Elaheh Mousavi
Metrics
H-Index
i10 Index
Citation Counts
18
22
812
Rankings
Ranking Based On Selection: 16
Seyed Vahid Shetab Boushehri
Metrics
H-Index
i10 Index
Citation Counts
13
17
816
Rankings
Ranking Based On Selection: 17
Yahya Jand
Metrics
H-Index
i10 Index
Citation Counts
11
13
498
melatonin
kynurenine pathway
neuroscience
neuroinflammation
Rankings
Ranking Based On Selection: 18
Tina Didari
Metrics
H-Index
i10 Index
Citation Counts
9
9
1,152
Pharmacology
Pain management
Clinical research
Inflammation
Oncology
Rankings
Ranking Based On Selection: 19
Hamidreza Mohammadi
Metrics
H-Index
i10 Index
Citation Counts
8
8
502
Rankings
Ranking Based On Selection: 21
Shiva Ghareghani
Metrics
H-Index
i10 Index
Citation Counts
4
3
41
Human health
Analytical toxicology
Food analysis
Drug analysis
Rankings
Ranking Based On Selection: 22
Sara Kheirandish
Metrics
H-Index
i10 Index
Citation Counts
2
2
21
Food & Drug Analysis
Method Validation
Forensic Toxicology