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
Zainab Alimoradi
Reproductive health
Adolescent Reproductive health
Metrics
H-Index
i10 Index
Citation
34
67
4,109
* Rankings
Ranking Based On Selection :2
Ahad Alizadeh
Bayesian data analysis
Causal Inference
R & Python Programming
Metrics
H-Index
i10 Index
Citation
31
83
3,217
* Rankings
Ranking Based On Selection :3
Reza Ghanbari
Environmental Health Engineering
Metrics
H-Index
i10 Index
Citation
26
35
2,996
* Rankings
Ranking Based On Selection :4
maryam javadi
dietary pattern
sleep
Noncommunicable_diseases
lifestyle
Metrics
H-Index
i10 Index
Citation
24
49
2,350
* Rankings
Ranking Based On Selection :12
Saeid Ahmadi
Occupational health
Noise Reduction
Industrial safety
Metrics
H-Index
i10 Index
Citation
10
10
557
Ghazaleh Mohammadi
Molecular Medicine/ Molecular Neuroscience
Metrics
H-Index
i10 Index
Citation
9
9
287
Payam Heydari
Ergonomics
Human Factor
Fitness for Work
Human Performance
Mental Workload
Metrics
H-Index
i10 Index
Citation
8
5
154
Hossein Ahmadpour Yazdi
Nanomedicine
Medical biotechnology
Clinical labaratory sciences
Metrics
H-Index
i10 Index
Citation
7
3
171
Hamid Sadeghi
Re/emerging Infectious Diseases
Meta-analysis
Metrics
H-Index
i10 Index
Citation
7
6
163
Sara Nazemsadati
infectious diseases and tropical medicine
Metrics
H-Index
i10 Index
Citation
1
0
1
Rankings
Ranking Based On Selection: 1
Zainab Alimoradi
Metrics
H-Index
i10 Index
Citation Counts
34
67
4,109
Reproductive health
Adolescent Reproductive health
Rankings
Ranking Based On Selection: 2
Ahad Alizadeh
Metrics
H-Index
i10 Index
Citation Counts
31
83
3,217
Bayesian data analysis
Causal Inference
R & Python Programming
Rankings
Ranking Based On Selection: 3
Reza Ghanbari
Metrics
H-Index
i10 Index
Citation Counts
26
35
2,996
Environmental Health Engineering
Rankings
Ranking Based On Selection: 4
maryam javadi
Metrics
H-Index
i10 Index
Citation Counts
24
49
2,350
dietary pattern
sleep
Noncommunicable_diseases
lifestyle
Rankings
Ranking Based On Selection: 5
Sima Hashemipour
Metrics
H-Index
i10 Index
Citation Counts
21
29
1,614
Rankings
Ranking Based On Selection: 6
Hassan Jahanihashemi
Metrics
H-Index
i10 Index
Citation Counts
17
25
705
Rankings
Ranking Based On Selection: 7
Neda Esmailzadehha
Metrics
H-Index
i10 Index
Citation Counts
17
25
705
Rankings
Ranking Based On Selection: 8
Jalil Azimian
Metrics
H-Index
i10 Index
Citation Counts
14
25
683
Rankings
Ranking Based On Selection: 9
Mohammadali Zohal
Metrics
H-Index
i10 Index
Citation Counts
14
15
769
Rankings
Ranking Based On Selection: 10
Monir Mirzadeh
Metrics
H-Index
i10 Index
Citation Counts
12
17
846
Rankings
Ranking Based On Selection: 11
Behzad Bijani
Metrics
H-Index
i10 Index
Citation Counts
11
13
390
Rankings
Ranking Based On Selection: 12
Saeid Ahmadi
Metrics
H-Index
i10 Index
Citation Counts
10
10
557
Occupational health
Noise Reduction
Industrial safety
Rankings
Ranking Based On Selection: 13
Fatemeh Khodabandehloo
Metrics
H-Index
i10 Index
Citation Counts
9
9
312
Rankings
Ranking Based On Selection: 14
Ghazaleh Mohammadi
Metrics
H-Index
i10 Index
Citation Counts
9
9
287
Molecular Medicine/ Molecular Neuroscience
Rankings
Ranking Based On Selection: 15
Forouzan Olfati
Metrics
H-Index
i10 Index
Citation Counts
9
9
335
Rankings
Ranking Based On Selection: 16
Mahdieh Zarabadipour
Metrics
H-Index
i10 Index
Citation Counts
8
7
258
Rankings
Ranking Based On Selection: 17
Payam Heydari
Metrics
H-Index
i10 Index
Citation Counts
8
5
154
Ergonomics
Human Factor
Fitness for Work
Human Performance
Mental Workload
Rankings
Ranking Based On Selection: 18
Hossein Ahmadpour Yazdi
Metrics
H-Index
i10 Index
Citation Counts
7
3
171
Nanomedicine
Medical biotechnology
Clinical labaratory sciences
Rankings
Ranking Based On Selection: 19
Hamid Sadeghi
Metrics
H-Index
i10 Index
Citation Counts
7
6
163
Re/emerging Infectious Diseases
Meta-analysis
Rankings
Ranking Based On Selection: 20
Farid Hajiali
Metrics
H-Index
i10 Index
Citation Counts
7
5
342
Rankings
Ranking Based On Selection: 21
Fereshteh Abdolmaleki
Metrics
H-Index
i10 Index
Citation Counts
6
5
435
Rankings
Ranking Based On Selection: 22
Dariush Hamedi Asl
Metrics
H-Index
i10 Index
Citation Counts
5
3
77
Rankings
Ranking Based On Selection: 23
Gholamhassan Shahbazi
Metrics
H-Index
i10 Index
Citation Counts
5
2
54
Rankings
Ranking Based On Selection: 24
Seyed Saeed Farzam
Metrics
H-Index
i10 Index
Citation Counts
2
0
18
Rankings
Ranking Based On Selection: 25
Maryam Jafari
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
Rankings
Ranking Based On Selection: 26
Mahdokht Rezaei
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
Rankings
Ranking Based On Selection: 27
Tina Bakhtiari
Metrics
H-Index
i10 Index
Citation Counts
2
0
8
Rankings
Ranking Based On Selection: 28
Mohammad Nobakht
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
Rankings
Ranking Based On Selection: 29
Sara Nazemsadati
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
infectious diseases and tropical medicine