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" (1,014,167 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
Ali Bijani Md
Medicine
Epidemiology
Health Outcomes
Ageing
Health Metrics
Metrics
H-Index
i10 Index
Citation
89
309
115,059
* Rankings
Ranking Based On Selection :2
Ali Akbar Moghadamnia
Clinical Pharmacokinetics
Organ Toxicity
Phytomedicine
Problem-based Learning
Metrics
H-Index
i10 Index
Citation
48
172
9,394
* Rankings
Ranking Based On Selection :3
Karimollah Hajian Tilaki
Methods In ROC analysis
Epidemiology of obesity and noncommunicable diseases
statistical modelling
Metrics
H-Index
i10 Index
Citation
41
94
9,339
* Rankings
Ranking Based On Selection :4
Mahdi Sepidarkish
Reproductive Epidemiology
Nutritional Epidemiology
Obstetrics and Gynecology
Cancer Epidemiology
Meta-analysis
Metrics
H-Index
i10 Index
Citation
39
109
6,631
* Rankings
Ranking Based On Selection :6
Behzad Heidari
Babol
Iran.Mobility Impairment Research Center
Babol univisity of medical sciences
Babol
Iran
Metrics
H-Index
i10 Index
Citation
36
72
5,417
* Rankings
Ranking Based On Selection :7
Durdi Qujeq
Clinical Biochemistry
Cancer
Stem Cell
Enzymology
Biomarker
Metrics
H-Index
i10 Index
Citation
35
81
3,211
* Rankings
Ranking Based On Selection :8
Maryam Ghasemi Kasman
Nanomedicine
In vivo direct reprogramming
Myelin repair enhancement
Metrics
H-Index
i10 Index
Citation
31
48
36,758
* Rankings
Ranking Based On Selection :9
Hadi Parsian
Clinical Biochemistry
Tumor markers
Cancer
RNA world
Exosomes
Metrics
H-Index
i10 Index
Citation
31
62
33,775
* Rankings
Ranking Based On Selection :12
Mohammad Hossein Asghari
Cancer Immunology
Extracellular vesicles
Drug resistance
Melatonin
Metrics
H-Index
i10 Index
Citation
27
44
2,260
* Rankings
Ranking Based On Selection :13
Mohammad Chehrazi
Causal Inference
Systematic Bias
Clinical Trials
Network Meta-Analysis
Metrics
H-Index
i10 Index
Citation
27
57
2,582
* Rankings
Ranking Based On Selection :22
Mousa Mohammadnia Afrouzi
Immunology
Immunoregulation
Autoimmunity
Transplantation Immunology
Metrics
H-Index
i10 Index
Citation
22
34
11,195
* Rankings
Ranking Based On Selection :24
Simin Mouodi
Health Policy
Lifestyle Modification
Medical Education
Medical Science
Metrics
H-Index
i10 Index
Citation
21
30
38,699
* Rankings
Ranking Based On Selection :28
Fatemeh Bakouei
Reproductive health-women
Metrics
H-Index
i10 Index
Citation
19
30
1,123
* Rankings
Ranking Based On Selection :29
Ahmad Karkhah
Immunology
Inflammation
Neurodegeneration
Alzheimer’s disease
Metrics
H-Index
i10 Index
Citation
19
25
1,066
* Rankings
Ranking Based On Selection :32
Seyyed Ali Mozaffarpur
Integrative medicine
Complementary and Alternative medicine
Traditional medicine
Metrics
H-Index
i10 Index
Citation
19
26
901
* Rankings
Ranking Based On Selection :34
Morteza Mojahedi
Persian Medicine
Integrative Medicine
Complementary and Alternative Medicine
Temperament
Questionnaire
Metrics
H-Index
i10 Index
Citation
17
25
1,056
* Rankings
Ranking Based On Selection :47
Razzagh Abedi-Firouzjah
Medical Physics
Machine Learning
Radiotherapy
Radiology
Dosimetry
Metrics
H-Index
i10 Index
Citation
14
16
482
* Rankings
Ranking Based On Selection :48
Kiarash Saleki
Neuroimmunology
Neuropsychiatry
Neurosurgery
Inflammasome and Cytokine
Immunoinformatics
Metrics
H-Index
i10 Index
Citation
14
15
768
* Rankings
Ranking Based On Selection :62
Roshanak Saghebi
Traditional Medicine
Persian Medicine
Metrics
H-Index
i10 Index
Citation
12
15
414
* Rankings
Ranking Based On Selection :70
Seyed Jalil Seyedi-Andi
Health Education
Health Promotion
GI Cancers
Social Health
Metrics
H-Index
i10 Index
Citation
11
12
304
* Rankings
Ranking Based On Selection :72
Mohsen Aghajanpour
Genetics
Laboratory Sciences
Cellular and Molecular Biology
Metrics
H-Index
i10 Index
Citation
10
12
323
* Rankings
Ranking Based On Selection :74
Seyedali Seyedmajidi
Dental Sciences
Dental Biomaterials
Biomedical Materials
Tissue Engineering
Metrics
H-Index
i10 Index
Citation
9
9
301
* Rankings
Ranking Based On Selection :77
Mehdi Tourani
cancer immunotherapy
Immunoinformatics
Vaccine designing
Metrics
H-Index
i10 Index
Citation
9
8
441
Davood Yari
Clinical Biochemistry
Molecular genetics
Cellular and Molecular Biology
Stem Cell Biology
Tissue Engineering
Metrics
H-Index
i10 Index
Citation
9
8
234
Pouya Tayebi
Vascular and Endovascular Surgeon
Metrics
H-Index
i10 Index
Citation
8
6
241
Abolfazl Rahmani
Immunology
Bioinformatics
Oncology
Neurodegenerative Disorders
Metrics
H-Index
i10 Index
Citation
7
6
418
N Shokrzadeh
Reproduction medicine
cell calture
molecular medicine
Metrics
H-Index
i10 Index
Citation
7
6
148
Rankings
Ranking Based On Selection: 1
Ali Bijani Md
Metrics
H-Index
i10 Index
Citation Counts
89
309
115,059
Medicine
Epidemiology
Health Outcomes
Ageing
Health Metrics
Rankings
Ranking Based On Selection: 2
Ali Akbar Moghadamnia
Metrics
H-Index
i10 Index
Citation Counts
48
172
9,394
Clinical Pharmacokinetics
Organ Toxicity
Phytomedicine
Problem-based Learning
Rankings
Ranking Based On Selection: 3
Karimollah Hajian Tilaki
Metrics
H-Index
i10 Index
Citation Counts
41
94
9,339
Methods In ROC analysis
Epidemiology of obesity and noncommunicable diseases
statistical modelling
Rankings
Ranking Based On Selection: 4
Mahdi Sepidarkish
Metrics
H-Index
i10 Index
Citation Counts
39
109
6,631
Reproductive Epidemiology
Nutritional Epidemiology
Obstetrics and Gynecology
Cancer Epidemiology
Meta-analysis
Rankings
Ranking Based On Selection: 5
Ali Rostami
Metrics
H-Index
i10 Index
Citation Counts
39
93
5,207
Rankings
Ranking Based On Selection: 6
Behzad Heidari
Metrics
H-Index
i10 Index
Citation Counts
36
72
5,417
Babol
Iran.Mobility Impairment Research Center
Babol univisity of medical sciences
Babol
Iran
Rankings
Ranking Based On Selection: 7
Durdi Qujeq
Metrics
H-Index
i10 Index
Citation Counts
35
81
3,211
Clinical Biochemistry
Cancer
Stem Cell
Enzymology
Biomarker
Rankings
Ranking Based On Selection: 8
Maryam Ghasemi Kasman
Metrics
H-Index
i10 Index
Citation Counts
31
48
36,758
Nanomedicine
In vivo direct reprogramming
Myelin repair enhancement
Rankings
Ranking Based On Selection: 9
Hadi Parsian
Metrics
H-Index
i10 Index
Citation Counts
31
62
33,775
Clinical Biochemistry
Tumor markers
Cancer
RNA world
Exosomes
Rankings
Ranking Based On Selection: 11
S Mahjoub|Soleiman Mahjoub
Metrics
H-Index
i10 Index
Citation Counts
30
65
4,242
Rankings
Ranking Based On Selection: 12
Mohammad Hossein Asghari
Metrics
H-Index
i10 Index
Citation Counts
27
44
2,260
Cancer Immunology
Extracellular vesicles
Drug resistance
Melatonin
Rankings
Ranking Based On Selection: 13
Mohammad Chehrazi
Metrics
H-Index
i10 Index
Citation Counts
27
57
2,582
Causal Inference
Systematic Bias
Clinical Trials
Network Meta-Analysis
Rankings
Ranking Based On Selection: 14
Sohrab Kazemi
Metrics
H-Index
i10 Index
Citation Counts
26
60
3,250
Rankings
Ranking Based On Selection: 16
Shabnam Omidvar
Metrics
H-Index
i10 Index
Citation Counts
25
47
2,113
Rankings
Ranking Based On Selection: 17
Ansar Karimian
Metrics
H-Index
i10 Index
Citation Counts
24
33
10,467
Rankings
Ranking Based On Selection: 18
Hamid Reza Nouri
Metrics
H-Index
i10 Index
Citation Counts
24
41
6,552
Rankings
Ranking Based On Selection: 19
Fatemeh Nasiri Amiri
Metrics
H-Index
i10 Index
Citation Counts
24
44
1,977
Rankings
Ranking Based On Selection: 20
Arefeh Babazadeh
Metrics
H-Index
i10 Index
Citation Counts
23
37
35,125
Rankings
Ranking Based On Selection: 21
Mostafa Javanian
Metrics
H-Index
i10 Index
Citation Counts
22
40
2,012
Rankings
Ranking Based On Selection: 22
Mousa Mohammadnia Afrouzi
Metrics
H-Index
i10 Index
Citation Counts
22
34
11,195
Immunology
Immunoregulation
Autoimmunity
Transplantation Immunology
Rankings
Ranking Based On Selection: 23
Ali Shabestani Monfared
Metrics
H-Index
i10 Index
Citation Counts
22
70
1,844
Rankings
Ranking Based On Selection: 24
Simin Mouodi
Metrics
H-Index
i10 Index
Citation Counts
21
30
38,699
Health Policy
Lifestyle Modification
Medical Education
Medical Science
Rankings
Ranking Based On Selection: 25
Zahra Memariani
Metrics
H-Index
i10 Index
Citation Counts
21
27
1,880
Rankings
Ranking Based On Selection: 26
Farzin Sadeghi
Metrics
H-Index
i10 Index
Citation Counts
20
33
1,228
Rankings
Ranking Based On Selection: 27
Afsaneh Bakhtiari
Metrics
H-Index
i10 Index
Citation Counts
19
35
1,113
Rankings
Ranking Based On Selection: 28
Fatemeh Bakouei
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,123
Reproductive health-women
Rankings
Ranking Based On Selection: 29
Ahmad Karkhah
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,066
Immunology
Inflammation
Neurodegeneration
Alzheimer’s disease
Rankings
Ranking Based On Selection: 30
Sina hanifar
Metrics
H-Index
i10 Index
Citation Counts
19
39
1,406
Rankings
Ranking Based On Selection: 31
Novin Nikbakhsh
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,273
Rankings
Ranking Based On Selection: 32
Seyyed Ali Mozaffarpur
Metrics
H-Index
i10 Index
Citation Counts
19
26
901
Integrative medicine
Complementary and Alternative medicine
Traditional medicine
Rankings
Ranking Based On Selection: 33
Mohammad Taghipour
Metrics
H-Index
i10 Index
Citation Counts
19
32
1,205
Rankings
Ranking Based On Selection: 34
Morteza Mojahedi
Metrics
H-Index
i10 Index
Citation Counts
17
25
1,056
Persian Medicine
Integrative Medicine
Complementary and Alternative Medicine
Temperament
Questionnaire
Rankings
Ranking Based On Selection: 35
Narges Kalantari
Metrics
H-Index
i10 Index
Citation Counts
17
24
722
Rankings
Ranking Based On Selection: 36
Saeid Mahdavi Omran
Metrics
H-Index
i10 Index
Citation Counts
17
24
688
Rankings
Ranking Based On Selection: 37
Abdolreza Daraei
Metrics
H-Index
i10 Index
Citation Counts
17
24
873
Rankings
Ranking Based On Selection: 38
Mousa Ahmadpour Kacho
Metrics
H-Index
i10 Index
Citation Counts
17
30
991
Rankings
Ranking Based On Selection: 39
Behnam Baghianimoghadam
Metrics
H-Index
i10 Index
Citation Counts
17
22
807
Rankings
Ranking Based On Selection: 40
Afsaneh Arzani
Metrics
H-Index
i10 Index
Citation Counts
16
26
15,656
Rankings
Ranking Based On Selection: 41
Manouchehr Ashrafpour
Metrics
H-Index
i10 Index
Citation Counts
16
21
585
Rankings
Ranking Based On Selection: 42
Amirmorteza Ebrahimzadeh Namvar
Metrics
H-Index
i10 Index
Citation Counts
16
19
977
Molecular typing and identification of pathogenic bacteria
Rankings
Ranking Based On Selection: 43
Salman Ghaffari
Metrics
H-Index
i10 Index
Citation Counts
16
19
459
Rankings
Ranking Based On Selection: 44
Hamed Tashakkorian
Metrics
H-Index
i10 Index
Citation Counts
15
28
911
Rankings
Ranking Based On Selection: 45
Arash Poorsattar Bejeh Mir
Metrics
H-Index
i10 Index
Citation Counts
15
21
779
Rankings
Ranking Based On Selection: 46
Fereshteh Behmanesh
Metrics
H-Index
i10 Index
Citation Counts
14
20
812
Rankings
Ranking Based On Selection: 47
Razzagh Abedi-Firouzjah
Metrics
H-Index
i10 Index
Citation Counts
14
16
482
Medical Physics
Machine Learning
Radiotherapy
Radiology
Dosimetry
Rankings
Ranking Based On Selection: 48
Kiarash Saleki
Metrics
H-Index
i10 Index
Citation Counts
14
15
768
Neuroimmunology
Neuropsychiatry
Neurosurgery
Inflammasome and Cytokine
Immunoinformatics
Rankings
Ranking Based On Selection: 49
Narjes Gorji|Narges Gorji, Nargess Gorji
Metrics
H-Index
i10 Index
Citation Counts
14
18
650
Traditional Medicine
Herbal medicine
Rankings
Ranking Based On Selection: 50
Elaheh Ferdosi-Shahandashti
Metrics
H-Index
i10 Index
Citation Counts
14
17
498
Rankings
Ranking Based On Selection: 51
Mousa Yaminfirooz
Metrics
H-Index
i10 Index
Citation Counts
14
24
16,818
Rankings
Ranking Based On Selection: 52
Amri Parviz
Metrics
H-Index
i10 Index
Citation Counts
14
18
599
Rankings
Ranking Based On Selection: 53
Seyed Ali Asghar Sefidgar
Metrics
H-Index
i10 Index
Citation Counts
14
16
598
Rankings
Ranking Based On Selection: 54
Mohammad Mehdi Naghibi Sistani
Metrics
H-Index
i10 Index
Citation Counts
13
15
1,405
Rankings
Ranking Based On Selection: 55
Payam Saadat
Metrics
H-Index
i10 Index
Citation Counts
13
17
575
Rankings
Ranking Based On Selection: 56
Fereshteh Pourabdolhossein
Metrics
H-Index
i10 Index
Citation Counts
13
17
494
Rankings
Ranking Based On Selection: 57
Fahimeh Hamedi Rad
Metrics
H-Index
i10 Index
Citation Counts
13
13
524
Rankings
Ranking Based On Selection: 58
Maryam Ehsani
Metrics
H-Index
i10 Index
Citation Counts
13
15
456
Rankings
Ranking Based On Selection: 59
Abbas Shamsalinia
Metrics
H-Index
i10 Index
Citation Counts
12
19
581
Rankings
Ranking Based On Selection: 60
Seyed Ahmad Rasoulinejad
Metrics
H-Index
i10 Index
Citation Counts
12
13
465
Rankings
Ranking Based On Selection: 61
Hamid Abbaszadeh
Metrics
H-Index
i10 Index
Citation Counts
12
15
443
Rankings
Ranking Based On Selection: 62
Roshanak Saghebi
Metrics
H-Index
i10 Index
Citation Counts
12
15
414
Traditional Medicine
Persian Medicine
Rankings
Ranking Based On Selection: 64
Farida Abesi
Metrics
H-Index
i10 Index
Citation Counts
12
14
539
Rankings
Ranking Based On Selection: 65
Zahra Akbarian Rad
Metrics
H-Index
i10 Index
Citation Counts
11
16
373
Rankings
Ranking Based On Selection: 66
Danial Fazilatpanah
Metrics
H-Index
i10 Index
Citation Counts
11
13
572
Rankings
Ranking Based On Selection: 67
Ali Asghar Manouchehri
Metrics
H-Index
i10 Index
Citation Counts
11
12
331
Rankings
Ranking Based On Selection: 68
Atena Shirzad
Metrics
H-Index
i10 Index
Citation Counts
11
11
355
Rankings
Ranking Based On Selection: 69
Zoleika Moazezi
Metrics
H-Index
i10 Index
Citation Counts
11
13
386
Rankings
Ranking Based On Selection: 70
Seyed Jalil Seyedi-Andi
Metrics
H-Index
i10 Index
Citation Counts
11
12
304
Health Education
Health Promotion
GI Cancers
Social Health
Rankings
Ranking Based On Selection: 71
Mohammad Mirzakhani
Metrics
H-Index
i10 Index
Citation Counts
10
10
264
Rankings
Ranking Based On Selection: 72
Mohsen Aghajanpour
Metrics
H-Index
i10 Index
Citation Counts
10
12
323
Genetics
Laboratory Sciences
Cellular and Molecular Biology
Rankings
Ranking Based On Selection: 73
Amirhossein Hasanpour
Metrics
H-Index
i10 Index
Citation Counts
9
9
337
Rankings
Ranking Based On Selection: 74
Seyedali Seyedmajidi
Metrics
H-Index
i10 Index
Citation Counts
9
9
301
Dental Sciences
Dental Biomaterials
Biomedical Materials
Tissue Engineering
Rankings
Ranking Based On Selection: 76
Mahmood Shams
Metrics
H-Index
i10 Index
Citation Counts
9
9
276
Rare Bleeding Disorders
Rankings
Ranking Based On Selection: 77
Mehdi Tourani
Metrics
H-Index
i10 Index
Citation Counts
9
8
441
cancer immunotherapy
Immunoinformatics
Vaccine designing
Rankings
Ranking Based On Selection: 78
Davood Yari
Metrics
H-Index
i10 Index
Citation Counts
9
8
234
Clinical Biochemistry
Molecular genetics
Cellular and Molecular Biology
Stem Cell Biology
Tissue Engineering
Rankings
Ranking Based On Selection: 79
Farideh Mohsenzadeh - Ledari
Metrics
H-Index
i10 Index
Citation Counts
9
9
446
Rankings
Ranking Based On Selection: 80
Behnaz Esmaeili
Metrics
H-Index
i10 Index
Citation Counts
9
9
347
Rankings
Ranking Based On Selection: 81
Aliakbar Rajabzadeh
Metrics
H-Index
i10 Index
Citation Counts
9
9
285
Rankings
Ranking Based On Selection: 83
Kourosh Gorji
Metrics
H-Index
i10 Index
Citation Counts
9
8
214
Rankings
Ranking Based On Selection: 84
Mir Saeid Ramezani
Metrics
H-Index
i10 Index
Citation Counts
9
7
235
Rankings
Ranking Based On Selection: 85
Mona Hashemian
Metrics
H-Index
i10 Index
Citation Counts
8
8
371
Rankings
Ranking Based On Selection: 86
Sedigheh Sheikhzadeh
Metrics
H-Index
i10 Index
Citation Counts
8
8
229
Rankings
Ranking Based On Selection: 87
İman Jahanian
Metrics
H-Index
i10 Index
Citation Counts
8
7
237
Rankings
Ranking Based On Selection: 88
Pouya Tayebi
Metrics
H-Index
i10 Index
Citation Counts
8
6
241
Vascular and Endovascular Surgeon
Rankings
Ranking Based On Selection: 89
Kamyar Amin
Metrics
H-Index
i10 Index
Citation Counts
8
8
365
Rankings
Ranking Based On Selection: 90
Zahra Shahandeh
Metrics
H-Index
i10 Index
Citation Counts
8
8
228
میکروب شناسی
Rankings
Ranking Based On Selection: 91
Faezeh Norouzinejad
Metrics
H-Index
i10 Index
Citation Counts
8
7
310
Rankings
Ranking Based On Selection: 92
Zeynab Farhadi
Metrics
H-Index
i10 Index
Citation Counts
7
6
477
Rankings
Ranking Based On Selection: 93
Abolfazl Rahmani
Metrics
H-Index
i10 Index
Citation Counts
7
6
418
Immunology
Bioinformatics
Oncology
Neurodegenerative Disorders
Rankings
Ranking Based On Selection: 94
Alireza Paniri
Metrics
H-Index
i10 Index
Citation Counts
7
6
282
Rankings
Ranking Based On Selection: 95
Hossein Dinpanah
Metrics
H-Index
i10 Index
Citation Counts
7
6
175
Rankings
Ranking Based On Selection: 96
Amir Gholami
Metrics
H-Index
i10 Index
Citation Counts
7
6
169
پزشکی هسته ای
Rankings
Ranking Based On Selection: 97
N Shokrzadeh
Metrics
H-Index
i10 Index
Citation Counts
7
6
148
Reproduction medicine
cell calture
molecular medicine
Rankings
Ranking Based On Selection: 98
Zahra Geraili
Metrics
H-Index
i10 Index
Citation Counts
7
4
166
Rankings
Ranking Based On Selection: 100
Zahra Babazadeh
Metrics
H-Index
i10 Index
Citation Counts
7
6
289