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" (870,053 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: 2
Reza Ahmadkhaniha
Analytical Chemistry
Chromatography
Mass spectrometry
Pharmaceutical Analysis
Food Analysis
Metrics
H-Index
i10 Index
Citation
31
55
2,858
* Rankings
Ranking Based On Selection: 4
Kazem Heidari
Social epidemiology
Clinical trials
Evidence based medicine
Systematic review
Good Clinical Practice
Metrics
H-Index
i10 Index
Citation
18
25
1,275
Rajabali Daroudi
Health Economics
Health Policy
Economic Evaluation
Discrete Choice Experiment
Metrics
H-Index
i10 Index
Citation
16
27
1,121
Eslam Moradi Asl|Moradiasl Eslam, Asl moradi eslam
Biology and Vector-borne diseases
Medical Entomology
Epidemiology of Infection Disease
Visceral Leishmaniasis
Tick and Tick
Metrics
H-Index
i10 Index
Citation
14
24
908
Rankings
Ranking Based On Selection: 1
Moeen Hadian
Metrics
H-Index
i10 Index
Citation Counts
43
114
5,911
Rankings
Ranking Based On Selection: 2
Reza Ahmadkhaniha
Metrics
H-Index
i10 Index
Citation Counts
31
55
2,858
Analytical Chemistry
Chromatography
Mass spectrometry
Pharmaceutical Analysis
Food Analysis
Rankings
Ranking Based On Selection: 3
Disaster Health
Urban Health
Disaster Risk Management
Resilience
Rankings
Ranking Based On Selection: 4
Kazem Heidari
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,275
Social epidemiology
Clinical trials
Evidence based medicine
Systematic review
Good Clinical Practice
Rankings
Ranking Based On Selection: 5
Masoomeh Alimohammadian
Metrics
H-Index
i10 Index
Citation Counts
18
20
1,642
Rankings
Ranking Based On Selection: 6
Mohammad Hossein Salari
Metrics
H-Index
i10 Index
Citation Counts
18
29
1,065
Rankings
Ranking Based On Selection: 7
Sayed Mahdi Marashi
Metrics
H-Index
i10 Index
Citation Counts
17
27
1,053
Rankings
Ranking Based On Selection: 8
Rajabali Daroudi
Metrics
H-Index
i10 Index
Citation Counts
16
27
1,121
Health Economics
Health Policy
Economic Evaluation
Discrete Choice Experiment
Rankings
Ranking Based On Selection: 9
Eslam Moradi Asl|Moradiasl Eslam, Asl moradi eslam
Metrics
H-Index
i10 Index
Citation Counts
14
24
908
Biology and Vector-borne diseases
Medical Entomology
Epidemiology of Infection Disease
Visceral Leishmaniasis
Tick and Tick