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" (870,057 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
Arash Rashidian
Policy Analysis
Health Systems
Health Financing
Quality Improvement
Provider Behavior Change
Metrics
H-Index
i10 Index
Citation
68
283
22,494
* Rankings
Ranking Based On Selection: 2
Saharnaz Nedjat
Social Epidemiology
Social Determinant of Health
Medical Education
Quality of Life
Life Style
Metrics
H-Index
i10 Index
Citation
51
234
9,576
* Rankings
Ranking Based On Selection: 3
Mohsen Nouri
Content Analysis
information retrieval
citation analysis
Digital Storytelling
Metrics
H-Index
i10 Index
Citation
35
97
4,447
* Rankings
Ranking Based On Selection: 4
Mehrdad Karimi
Structural Equations Modeling (SEM)
Latent Varibles Analysis
Longitudinal Data Analysis
Metrics
H-Index
i10 Index
Citation
23
39
2,116
Mahboubeh Shirzad
Maternal and Child Health
Substance use
Gender Equity
Metrics
H-Index
i10 Index
Citation
9
9
304
Hamideh Ehtesham
Dental Informatics
Health Information Management
Medical Library & Information Sciences
Metrics
H-Index
i10 Index
Citation
8
8
275
Fatemeh Sheikhshoaei
Digital library
Clinical librarian
Information Technology acceptance
peer review
Metrics
H-Index
i10 Index
Citation
6
4
239
Zahra Keshtkar
library & information science
Scientometrics
Research Affairs
EFQM Model
Metrics
H-Index
i10 Index
Citation
3
0
21
Rankings
Ranking Based On Selection: 1
Arash Rashidian
Metrics
H-Index
i10 Index
Citation Counts
68
283
22,494
Policy Analysis
Health Systems
Health Financing
Quality Improvement
Provider Behavior Change
Rankings
Ranking Based On Selection: 2
Saharnaz Nedjat
Metrics
H-Index
i10 Index
Citation Counts
51
234
9,576
Social Epidemiology
Social Determinant of Health
Medical Education
Quality of Life
Life Style
Rankings
Ranking Based On Selection: 3
Mohsen Nouri
Metrics
H-Index
i10 Index
Citation Counts
35
97
4,447
Content Analysis
information retrieval
citation analysis
Digital Storytelling
Rankings
Ranking Based On Selection: 4
Mehrdad Karimi
Metrics
H-Index
i10 Index
Citation Counts
23
39
2,116
Structural Equations Modeling (SEM)
Latent Varibles Analysis
Longitudinal Data Analysis
Rankings
Ranking Based On Selection: 5
Mahboubeh Shirzad
Metrics
H-Index
i10 Index
Citation Counts
9
9
304
Maternal and Child Health
Substance use
Gender Equity
Rankings
Ranking Based On Selection: 6
Seyed Javad Ghazi Mirsaeid
Metrics
H-Index
i10 Index
Citation Counts
9
8
398
Rankings
Ranking Based On Selection: 7
Hamideh Ehtesham
Metrics
H-Index
i10 Index
Citation Counts
8
8
275
Dental Informatics
Health Information Management
Medical Library & Information Sciences
Rankings
Ranking Based On Selection: 8
Fatemeh Sheikhshoaei
Metrics
H-Index
i10 Index
Citation Counts
6
4
239
Digital library
Clinical librarian
Information Technology acceptance
peer review
Rankings
Ranking Based On Selection: 9
Zahra Keshtkar
Metrics
H-Index
i10 Index
Citation Counts
3
0
21
library & information science
Scientometrics
Research Affairs
EFQM Model