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” (1,121,299 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.

* Total H Index Rankings

Rankings

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974
World Rank
Iran
6
Country Rank
Mashhad University of Medical Sciences Logo
1
University
Ranking Based On Selection:
1
* Total H Index Rankings

Rankings

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6,920
World Rank
Iran
21
Country Rank
Mashhad University of Medical Sciences Logo
2
University
Ranking Based On Selection:
2

H-Index Metrics

  • H-Index
    109
  • i10 Index
    429
  • Citation Counts
    40,340
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* Total H Index Rankings

Rankings

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16,596
World Rank
Iran
48
Country Rank
Mashhad University of Medical Sciences Logo
3
University
Ranking Based On Selection:
3
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Biomaterials | Nanomaterials | Gene Delivery | Drug Delivery | Biosensor

H-Index Metrics

  • H-Index
    86
  • i10 Index
    422
  • Citation Counts
    24,798
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* Total H Index Rankings

Rankings

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18,766
World Rank
Iran
57
Country Rank
Mashhad University of Medical Sciences Logo
4
University
Ranking Based On Selection:
4
* Total H Index Rankings

Rankings

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31,218
World Rank
Iran
108
Country Rank
Mashhad University of Medical Sciences Logo
5
University
Ranking Based On Selection:
5
Medical and Health Sciences / Pharmacology
Molecular Mechanisms | Pharmacology | Physiology | Cancer | Nervus syste

H-Index Metrics

  • H-Index
    71
  • i10 Index
    219
  • Citation Counts
    15,408
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* Total H Index Rankings

Rankings

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34,140
World Rank
Iran
125
Country Rank
Mashhad University of Medical Sciences Logo
6
University
Ranking Based On Selection:
6
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Targeted drug delivery | Sensors | Aptamers | CRISPR-Cas systems | SELE

H-Index Metrics

  • H-Index
    69
  • i10 Index
    241
  • Citation Counts
    15,053
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* Total H Index Rankings

Rankings

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34,173
World Rank
Iran
127
Country Rank
Mashhad University of Medical Sciences Logo
7
University
Ranking Based On Selection:
7
* Total H Index Rankings

Rankings

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37,458
World Rank
Iran
153
Country Rank
Mashhad University of Medical Sciences Logo
9
University
Ranking Based On Selection:
8
Medical and Health Sciences / Cardiology
Cardiovascular diseases | Atherosclerosis | Diet and lifestyle | Inflammatory disorder

H-Index Metrics

  • H-Index
    67
  • i10 Index
    402
  • Citation Counts
    19,726
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* Total H Index Rankings

Rankings

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43,476
World Rank
Iran
195
Country Rank
Mashhad University of Medical Sciences Logo
11
University
Ranking Based On Selection:
9
Medical and Health Sciences / Cardiology
interventional cardiolog

H-Index Metrics

  • H-Index
    64
  • i10 Index
    373
  • Citation Counts
    17,802
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* Total H Index Rankings

Rankings

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63,326
World Rank
Iran
338
Country Rank
Mashhad University of Medical Sciences Logo
14
University
Ranking Based On Selection:
10
Medical and Health Sciences / Pharmacology
Neuropharmacology | Regenerative Pharmacolog

H-Index Metrics

  • H-Index
    56
  • i10 Index
    167
  • Citation Counts
    9,621
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* Total H Index Rankings

Rankings

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69,836
World Rank
Iran
386
Country Rank
Mashhad University of Medical Sciences Logo
15
University
Ranking Based On Selection:
11
* Total H Index Rankings

Rankings

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74,387
World Rank
Iran
441
Country Rank
Mashhad University of Medical Sciences Logo
17
University
Ranking Based On Selection:
12

H-Index Metrics

  • H-Index
    53
  • i10 Index
    220
  • Citation Counts
    9,679
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* Total H Index Rankings

Rankings

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76,971
World Rank
Iran
460
Country Rank
Mashhad University of Medical Sciences Logo
18
University
Ranking Based On Selection:
13
* Total H Index Rankings

Rankings

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94,967
World Rank
Iran
639
Country Rank
Mashhad University of Medical Sciences Logo
21
University
Ranking Based On Selection:
14
Medical and Health Sciences / Parasitology
Binocular vision | Refractive errors | Keratoconus | Ophthalmic epidemiology | Contact lense

H-Index Metrics

  • H-Index
    48
  • i10 Index
    165
  • Citation Counts
    8,903
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* Total H Index Rankings

Rankings

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99,090
World Rank
Iran
674
Country Rank
Mashhad University of Medical Sciences Logo
22
University
Ranking Based On Selection:
15
Medical and Health Sciences / Pharmacology
Pharmacology | toxicology | natural compound

H-Index Metrics

  • H-Index
    47
  • i10 Index
    127
  • Citation Counts
    9,325
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* Total H Index Rankings

Rankings

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99,111
World Rank
Iran
675
Country Rank
Mashhad University of Medical Sciences Logo
23
University
Ranking Based On Selection:
16
* Total H Index Rankings

Rankings

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105,611
World Rank
Iran
761
Country Rank
Mashhad University of Medical Sciences Logo
24
University
Ranking Based On Selection:
17
Medical and Health Sciences / Pharmacology
Regenerative Pharmacology | Liver disorders | Diabete

H-Index Metrics

  • H-Index
    46
  • i10 Index
    133
  • Citation Counts
    7,312
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* Total H Index Rankings

Rankings

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117,765
World Rank
Iran
904
Country Rank
Mashhad University of Medical Sciences Logo
28
University
Ranking Based On Selection:
18
Medical and Health Sciences / Pharmacology
Ethnopharmacology | Neuropharmacolog

H-Index Metrics

  • H-Index
    44
  • i10 Index
    134
  • Citation Counts
    5,688
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* Total H Index Rankings

Rankings

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125,438
World Rank
Iran
1,008
Country Rank
Mashhad University of Medical Sciences Logo
34
University
Ranking Based On Selection:
19
* Total H Index Rankings

Rankings

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128,883
World Rank
Iran
1,033
Country Rank
Mashhad University of Medical Sciences Logo
35
University
Ranking Based On Selection:
20
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Neurotoxicology | cell signaling pathway

H-Index Metrics

  • H-Index
    42
  • i10 Index
    90
  • Citation Counts
    5,056
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* Total H Index Rankings

Rankings

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131,165
World Rank
Iran
1,078
Country Rank
Mashhad University of Medical Sciences Logo
37
University
Ranking Based On Selection:
21
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Natural products | Phytochemistry | Medicinal plant

H-Index Metrics

  • H-Index
    42
  • i10 Index
    109
  • Citation Counts
    4,810
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* Total H Index Rankings

Rankings

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131,913
World Rank
Iran
1,094
Country Rank
Mashhad University of Medical Sciences Logo
38
University
Ranking Based On Selection:
22
Medical and Health Sciences / Medical Genetics
Cancer Genetics | Medical Genetic

H-Index Metrics

  • H-Index
    42
  • i10 Index
    144
  • Citation Counts
    6,141
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* Total H Index Rankings

Rankings

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143,704
World Rank
Iran
1,241
Country Rank
Mashhad University of Medical Sciences Logo
41
University
Ranking Based On Selection:
23
Medical and Health Sciences / Epidemiology and Public Health
Epidemiology | Research Methodology | Health | Cancer | Qualitative Researc

H-Index Metrics

  • H-Index
    40
  • i10 Index
    154
  • Citation Counts
    7,864
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* Total H Index Rankings

Rankings

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151,101
World Rank
Iran
1,328
Country Rank
Mashhad University of Medical Sciences Logo
42
University
Ranking Based On Selection:
24
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmacology | Clinical Pharmacology | Pharmacokinetics | Toxicology | Pharmaceutical Science

H-Index Metrics

  • H-Index
    40
  • i10 Index
    95
  • Citation Counts
    4,132
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* Total H Index Rankings

Rankings

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153,250
World Rank
Iran
1,367
Country Rank
Mashhad University of Medical Sciences Logo
43
University
Ranking Based On Selection:
25