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
Ghobad Moradi
Epidemiology
Public Health
Health Inequality
SDH (Social Determinants of Health)
HIV/AIDS
Metrics
H-Index
i10 Index
Citation
58
162
86,123
* Rankings
Ranking Based On Selection :3
Yousef Moradi
Evidence Synthesis
Molecular Epidemiology
Gender Identity
High Risk Behaviors
Metrics
H-Index
i10 Index
Citation
40
101
8,731
* Rankings
Ranking Based On Selection :6
Wesam Kooti
Immunology
allergy
Chronic Urticaria
Pharmacognosy
Cancer
Metrics
H-Index
i10 Index
Citation
31
56
4,392
* Rankings
Ranking Based On Selection :7
Reza Rezaee
Membrane technology for water and wastewater treatment
Metrics
H-Index
i10 Index
Citation
30
75
3,322
* Rankings
Ranking Based On Selection :9
Ebrahim Ghaderi
Epidemiology
Communicable Diseases
Surveillance System
Public Health and Health Policy
RCT
Metrics
H-Index
i10 Index
Citation
28
75
2,453
* Rankings
Ranking Based On Selection :12
Bakhtiar Piroozi
Social Determinants of Health
Health Inequality
UHC
Vulnerable Populations
Healthcare Access
Metrics
H-Index
i10 Index
Citation
24
45
2,791
* Rankings
Ranking Based On Selection :14
Sina Valiee
Nursing Care
Qualitative research
Nursing Education
Critical Care
Metrics
H-Index
i10 Index
Citation
23
45
1,871
* Rankings
Ranking Based On Selection :15
Bijan Nouri
Time Series
Meta-Analysis
modeling in medicine
Metrics
H-Index
i10 Index
Citation
23
47
1,900
* Rankings
Ranking Based On Selection :18
Parvaneh Taymoori
Health Psychology
Breast Cancer Screening Behaviors
Physical Activity
Metrics
H-Index
i10 Index
Citation
23
34
9,655
* Rankings
Ranking Based On Selection :19
Abbas Aghaei عباس آقائی
Epidemiology
Clinical Epidemiology
systematic review and Meta analysis
Medical research
Metrics
H-Index
i10 Index
Citation
22
41
1,666
* Rankings
Ranking Based On Selection :23
Farhad Moradpour
Social determinant of Health
Cancer Epidemiology
Health inequality
Mental health epidemiology
Metrics
H-Index
i10 Index
Citation
21
33
12,058
* Rankings
Ranking Based On Selection :28
Ebrahim Darvishi
Noise Effects
Environmental Ergonomics
occupational epidemiology
Metrics
H-Index
i10 Index
Citation
19
34
1,004
* Rankings
Ranking Based On Selection :31
Shahram Sadeghi
Environmental Health
Water and Wastewater
Metrics
H-Index
i10 Index
Citation
18
21
2,876
* Rankings
Ranking Based On Selection :34
Abbas Ahmadi
Hematology
Molecular Medicine
Genetics
Biology
Immunology
Metrics
H-Index
i10 Index
Citation
17
27
923
* Rankings
Ranking Based On Selection :39
Alireza Gharib
Home Care Nurse
Stroke
TBI
Epilepsy
Neurosurgical Post-op Care
Metrics
H-Index
i10 Index
Citation
15
22
696
* Rankings
Ranking Based On Selection :43
Ahmad Vahabi
Medical Entomology
leishmaniasis
Medical Education
GIS
Public Health
Metrics
H-Index
i10 Index
Citation
13
19
549
* Rankings
Ranking Based On Selection :51
Arezoo Yari
Disaster Medicine
Health in Disaster
Epidemiologic Study
Case Control Study
Metrics
H-Index
i10 Index
Citation
12
13
499
* Rankings
Ranking Based On Selection :55
Sara Chavoshinezhad
Alzheimer's disease
Optogenetic approaches
neural repair mechanisms
Neurogenesis
Neural differentiation pathways
Metrics
H-Index
i10 Index
Citation
11
14
224
* Rankings
Ranking Based On Selection :57
Yadolah Zarezadeh
Medical Education
Medical Errors
Patient Safety
disasters management
Professionalism، disaster management
Metrics
H-Index
i10 Index
Citation
11
12
594
* Rankings
Ranking Based On Selection :58
Nader Amini (Saghez)
Electrochemistry
Biosensors
Nanomaterials
Sensors
Environmental pollutions
Metrics
H-Index
i10 Index
Citation
11
12
354
* Rankings
Ranking Based On Selection :68
Arash Pooladi
Medicine
Medical Genetics
Cancer Biology
Medical Education & Evidence Based Medicine
Metrics
H-Index
i10 Index
Citation
10
10
584
Seyed Hadi Anjamrooz
Cell Memory
Holographic Principle
Stem Cell Biology
Cellular Reprogramming
Metrics
H-Index
i10 Index
Citation
9
6
295
Kourosh Delpasand
Medical Ethics
Medical Law
Pharmacy Ethics and Law
Patient Rights
human rights education
Metrics
H-Index
i10 Index
Citation
8
8
1,436
Mehrzad Ebrahemzadih
Occupational safety & health - Risk assessment & Management - Occupational Medicine - Air Pollution
Metrics
H-Index
i10 Index
Citation
8
7
205
Shaho Menbari
Medical Microbiology
Antimicrobial Resistance
bacterial Molecular Epidemiology
Metrics
H-Index
i10 Index
Citation
8
8
199
Nasrin Abdi
health promotion
health education
healthy life style
nutrition literacy
ethic
Metrics
H-Index
i10 Index
Citation
8
6
208
Rankings
Ranking Based On Selection: 1
Ghobad Moradi
Metrics
H-Index
i10 Index
Citation Counts
58
162
86,123
Epidemiology
Public Health
Health Inequality
SDH (Social Determinants of Health)
HIV/AIDS
Rankings
Ranking Based On Selection: 2
Afshin Maleki
Metrics
H-Index
i10 Index
Citation Counts
52
174
24,495
Rankings
Ranking Based On Selection: 3
Yousef Moradi
Metrics
H-Index
i10 Index
Citation Counts
40
101
8,731
Evidence Synthesis
Molecular Epidemiology
Gender Identity
High Risk Behaviors
Rankings
Ranking Based On Selection: 4
Behzad Shahmoradi
Metrics
H-Index
i10 Index
Citation Counts
40
92
4,562
Rankings
Ranking Based On Selection: 5
Reza Ghanei Gheshlagh
Metrics
H-Index
i10 Index
Citation Counts
34
114
7,092
Rankings
Ranking Based On Selection: 6
Wesam Kooti
Metrics
H-Index
i10 Index
Citation Counts
31
56
4,392
Immunology
allergy
Chronic Urticaria
Pharmacognosy
Cancer
Rankings
Ranking Based On Selection: 7
Reza Rezaee
Metrics
H-Index
i10 Index
Citation Counts
30
75
3,322
Membrane technology for water and wastewater treatment
Rankings
Ranking Based On Selection: 8
Farzin Rezaei
Metrics
H-Index
i10 Index
Citation Counts
28
47
2,266
Rankings
Ranking Based On Selection: 9
Ebrahim Ghaderi
Metrics
H-Index
i10 Index
Citation Counts
28
75
2,453
Epidemiology
Communicable Diseases
Surveillance System
Public Health and Health Policy
RCT
Rankings
Ranking Based On Selection: 10
Mahdi Safari
Metrics
H-Index
i10 Index
Citation Counts
27
44
2,544
Rankings
Ranking Based On Selection: 11
Hiua Daraei
Metrics
H-Index
i10 Index
Citation Counts
25
49
2,264
Rankings
Ranking Based On Selection: 12
Bakhtiar Piroozi
Metrics
H-Index
i10 Index
Citation Counts
24
45
2,791
Social Determinants of Health
Health Inequality
UHC
Vulnerable Populations
Healthcare Access
Rankings
Ranking Based On Selection: 13
Ali Jalili
Metrics
H-Index
i10 Index
Citation Counts
24
46
1,861
Rankings
Ranking Based On Selection: 14
Sina Valiee
Metrics
H-Index
i10 Index
Citation Counts
23
45
1,871
Nursing Care
Qualitative research
Nursing Education
Critical Care
Rankings
Ranking Based On Selection: 15
Bijan Nouri
Metrics
H-Index
i10 Index
Citation Counts
23
47
1,900
Time Series
Meta-Analysis
modeling in medicine
Rankings
Ranking Based On Selection: 16
Daem Roshani
Metrics
H-Index
i10 Index
Citation Counts
23
62
2,223
Rankings
Ranking Based On Selection: 17
Tahereh Pashaei
Metrics
H-Index
i10 Index
Citation Counts
23
30
9,958
Rankings
Ranking Based On Selection: 18
Parvaneh Taymoori
Metrics
H-Index
i10 Index
Citation Counts
23
34
9,655
Health Psychology
Breast Cancer Screening Behaviors
Physical Activity
Rankings
Ranking Based On Selection: 19
Abbas Aghaei عباس آقائی
Metrics
H-Index
i10 Index
Citation Counts
22
41
1,666
Epidemiology
Clinical Epidemiology
systematic review and Meta analysis
Medical research
Rankings
Ranking Based On Selection: 20
Rashid Ramazanzadeh
Metrics
H-Index
i10 Index
Citation Counts
22
50
1,580
Rankings
Ranking Based On Selection: 21
Amjad Mohamadi Bolbanabad
Metrics
H-Index
i10 Index
Citation Counts
21
44
2,118
Rankings
Ranking Based On Selection: 22
Hassan Mahmoodi
Metrics
H-Index
i10 Index
Citation Counts
21
35
1,368
Health education
Health promotion
community health nursing
Rankings
Ranking Based On Selection: 23
Farhad Moradpour
Metrics
H-Index
i10 Index
Citation Counts
21
33
12,058
Social determinant of Health
Cancer Epidemiology
Health inequality
Mental health epidemiology
Rankings
Ranking Based On Selection: 25
Fardin Fathi
Metrics
H-Index
i10 Index
Citation Counts
21
43
1,959
Rankings
Ranking Based On Selection: 26
Esmail Ghahramani
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,632
Rankings
Ranking Based On Selection: 27
Asadollah Mohammadi
Metrics
H-Index
i10 Index
Citation Counts
19
27
5,138
Rankings
Ranking Based On Selection: 28
Ebrahim Darvishi
Metrics
H-Index
i10 Index
Citation Counts
19
34
1,004
Noise Effects
Environmental Ergonomics
occupational epidemiology
Rankings
Ranking Based On Selection: 29
Mohammad Abdi
Metrics
H-Index
i10 Index
Citation Counts
19
37
1,082
Rankings
Ranking Based On Selection: 30
Esmael Izadpanah
Metrics
H-Index
i10 Index
Citation Counts
18
27
820
Rankings
Ranking Based On Selection: 31
Shahram Sadeghi
Metrics
H-Index
i10 Index
Citation Counts
18
21
2,876
Environmental Health
Water and Wastewater
Rankings
Ranking Based On Selection: 32
Jafar Soltani
Metrics
H-Index
i10 Index
Citation Counts
17
20
2,394
Rankings
Ranking Based On Selection: 34
Abbas Ahmadi
Metrics
H-Index
i10 Index
Citation Counts
17
27
923
Hematology
Molecular Medicine
Genetics
Biology
Immunology
Rankings
Ranking Based On Selection: 35
Saeed Dehestaniathar
Metrics
H-Index
i10 Index
Citation Counts
17
21
707
Environmental Microbiology and Biotechnology
Rankings
Ranking Based On Selection: 36
Fayegh Yousefi
Metrics
H-Index
i10 Index
Citation Counts
16
24
937
Rankings
Ranking Based On Selection: 37
Naseh Sigari
Metrics
H-Index
i10 Index
Citation Counts
15
19
678
Rankings
Ranking Based On Selection: 38
Abdorrahim Afkhamzadeh
Metrics
H-Index
i10 Index
Citation Counts
15
30
909
Rankings
Ranking Based On Selection: 39
Alireza Gharib
Metrics
H-Index
i10 Index
Citation Counts
15
22
696
Home Care Nurse
Stroke
TBI
Epilepsy
Neurosurgical Post-op Care
Rankings
Ranking Based On Selection: 40
Asrin Babahajian
Metrics
H-Index
i10 Index
Citation Counts
14
18
632
Rankings
Ranking Based On Selection: 42
Vajiheh Baghi
Metrics
H-Index
i10 Index
Citation Counts
13
15
421
Rankings
Ranking Based On Selection: 43
Ahmad Vahabi
Metrics
H-Index
i10 Index
Citation Counts
13
19
549
Medical Entomology
leishmaniasis
Medical Education
GIS
Public Health
Rankings
Ranking Based On Selection: 44
Behzad Mohsenpour
Metrics
H-Index
i10 Index
Citation Counts
13
16
458
Rankings
Ranking Based On Selection: 45
Massoumeh Zargaran
Metrics
H-Index
i10 Index
Citation Counts
13
15
440
Rankings
Ranking Based On Selection: 46
Majid Mansouri
Metrics
H-Index
i10 Index
Citation Counts
13
15
433
Rankings
Ranking Based On Selection: 47
Bayazid Ghaderi
Metrics
H-Index
i10 Index
Citation Counts
12
15
377
Rankings
Ranking Based On Selection: 48
Safoura Derakhshan
Metrics
H-Index
i10 Index
Citation Counts
12
16
642
Rankings
Ranking Based On Selection: 50
Shohreh Fakhari
Metrics
H-Index
i10 Index
Citation Counts
12
14
375
Rankings
Ranking Based On Selection: 51
Arezoo Yari
Metrics
H-Index
i10 Index
Citation Counts
12
13
499
Disaster Medicine
Health in Disaster
Epidemiologic Study
Case Control Study
Rankings
Ranking Based On Selection: 52
Pedram Ataee
Metrics
H-Index
i10 Index
Citation Counts
12
12
320
Rankings
Ranking Based On Selection: 53
Shima Rahmati
Metrics
H-Index
i10 Index
Citation Counts
11
12
518
cancer
regenerative medicine
tissue engineering
stem cell
exosome
Rankings
Ranking Based On Selection: 54
Amjad Ahmadi
Metrics
H-Index
i10 Index
Citation Counts
11
12
407
Rankings
Ranking Based On Selection: 55
Sara Chavoshinezhad
Metrics
H-Index
i10 Index
Citation Counts
11
14
224
Alzheimer's disease
Optogenetic approaches
neural repair mechanisms
Neurogenesis
Neural differentiation pathways
Rankings
Ranking Based On Selection: 56
Mehran Yarahmadi
Metrics
H-Index
i10 Index
Citation Counts
11
13
391
Rankings
Ranking Based On Selection: 57
Yadolah Zarezadeh
Metrics
H-Index
i10 Index
Citation Counts
11
12
594
Medical Education
Medical Errors
Patient Safety
disasters management
Professionalism، disaster management
Rankings
Ranking Based On Selection: 58
Nader Amini (Saghez)
Metrics
H-Index
i10 Index
Citation Counts
11
12
354
Electrochemistry
Biosensors
Nanomaterials
Sensors
Environmental pollutions
Rankings
Ranking Based On Selection: 59
Shadi Kohzadi
Metrics
H-Index
i10 Index
Citation Counts
11
11
454
Nano sciences and Ecotoxicology
Rankings
Ranking Based On Selection: 60
Amirhooshang Barati
Metrics
H-Index
i10 Index
Citation Counts
11
13
711
sonodynamic therapy
nanomedicine
radiation therapy
Rankings
Ranking Based On Selection: 61
Soleiman Mohammadzadeh
Metrics
H-Index
i10 Index
Citation Counts
10
10
514
Rankings
Ranking Based On Selection: 62
Azra Allahveisi
Metrics
H-Index
i10 Index
Citation Counts
10
10
324
human reproductive
infertility
Rankings
Ranking Based On Selection: 64
Abdolghader Pakniyat
Metrics
H-Index
i10 Index
Citation Counts
10
10
342
Emergency Medicine
CPR
Ultrasound
Trauma
Critical Care
Rankings
Ranking Based On Selection: 65
Fazel Dehvan
Metrics
H-Index
i10 Index
Citation Counts
10
10
319
Critical Care Nursing
systematic review and meta-analysis
Rankings
Ranking Based On Selection: 67
Kamal Salehi
Metrics
H-Index
i10 Index
Citation Counts
10
10
360
Rankings
Ranking Based On Selection: 68
Arash Pooladi
Metrics
H-Index
i10 Index
Citation Counts
10
10
584
Medicine
Medical Genetics
Cancer Biology
Medical Education & Evidence Based Medicine
Rankings
Ranking Based On Selection: 69
Slahadin Ahmadi
Metrics
H-Index
i10 Index
Citation Counts
10
10
369
Rankings
Ranking Based On Selection: 70
Farzad Soleimani
Metrics
H-Index
i10 Index
Citation Counts
9
8
373
Rankings
Ranking Based On Selection: 71
Vahedeh Hosseini
Metrics
H-Index
i10 Index
Citation Counts
9
8
283
Rankings
Ranking Based On Selection: 72
Masoud Alasvand
Metrics
H-Index
i10 Index
Citation Counts
9
9
612
Reproductive Biology
Cancer
Angiogenesis
Neurosciences
Rankings
Ranking Based On Selection: 75
Heshmatollah Soufi Majidpour
Metrics
H-Index
i10 Index
Citation Counts
9
9
480
Rankings
Ranking Based On Selection: 76
Seyed Hadi Anjamrooz
Metrics
H-Index
i10 Index
Citation Counts
9
6
295
Cell Memory
Holographic Principle
Stem Cell Biology
Cellular Reprogramming
Rankings
Ranking Based On Selection: 77
Kourosh Delpasand
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,436
Medical Ethics
Medical Law
Pharmacy Ethics and Law
Patient Rights
human rights education
Rankings
Ranking Based On Selection: 78
Asadolah Fatholahpour
Metrics
H-Index
i10 Index
Citation Counts
8
8
183
Rankings
Ranking Based On Selection: 79
Hanife Shariatifar
Metrics
H-Index
i10 Index
Citation Counts
8
8
177
Rankings
Ranking Based On Selection: 80
Mehrzad Ebrahemzadih
Metrics
H-Index
i10 Index
Citation Counts
8
7
205
Occupational safety & health - Risk assessment & Management - Occupational Medicine - Air Pollution
Rankings
Ranking Based On Selection: 81
Masoud Rasolabadi
Metrics
H-Index
i10 Index
Citation Counts
8
8
277
Rankings
Ranking Based On Selection: 82
Fariba Seyedoshohadaei
Metrics
H-Index
i10 Index
Citation Counts
8
8
257
Rankings
Ranking Based On Selection: 83
Shaho Menbari
Metrics
H-Index
i10 Index
Citation Counts
8
8
199
Medical Microbiology
Antimicrobial Resistance
bacterial Molecular Epidemiology
Rankings
Ranking Based On Selection: 85
Ghasem Zamini
Metrics
H-Index
i10 Index
Citation Counts
8
7
213
Rankings
Ranking Based On Selection: 86
Samira Rahimnejad
Metrics
H-Index
i10 Index
Citation Counts
8
7
142
Rankings
Ranking Based On Selection: 88
Yahya Maroufi
Metrics
H-Index
i10 Index
Citation Counts
8
6
157
leishmania
intestinalis nematoda
Rankings
Ranking Based On Selection: 89
Nasrin Abdi
Metrics
H-Index
i10 Index
Citation Counts
8
6
208
health promotion
health education
healthy life style
nutrition literacy
ethic
Rankings
Ranking Based On Selection: 90
Arman Rahimmi
Metrics
H-Index
i10 Index
Citation Counts
7
6
277
Rankings
Ranking Based On Selection: 92
Gholamreza Esfandiari
Metrics
H-Index
i10 Index
Citation Counts
7
7
342
Rankings
Ranking Based On Selection: 93
Samira Khajeh
Metrics
H-Index
i10 Index
Citation Counts
7
6
326
Rankings
Ranking Based On Selection: 96
Katayon Hajibagheri
Metrics
H-Index
i10 Index
Citation Counts
7
4
128
Rankings
Ranking Based On Selection: 97
Jafar Moballeghi
Metrics
H-Index
i10 Index
Citation Counts
7
6
158
Rankings
Ranking Based On Selection: 98
Siamak Vahedi
Metrics
H-Index
i10 Index
Citation Counts
6
6
388
Rankings
Ranking Based On Selection: 99
Kambiz Zehni
Metrics
H-Index
i10 Index
Citation Counts
6
6
107