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" (873,690 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
Khalid SA Khabar
mRNA stability
AU-rich elements
Interferon and Cytokine Biology
Metrics
H-Index
i10 Index
Citation
42
68
6,891
* Rankings
Ranking Based On Selection: 10
Dilek Colak
Computational and Systems Biology
Bioinformatics
Medical Genomics
Computational medicine
Network medicine
Metrics
H-Index
i10 Index
Citation
34
72
4,092

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* Rankings
Ranking Based On Selection: 11
Namik Kaya
Molecular Genetics
Medical Genomics
NeuroGenetics
Molecular Cytogenetics/Pathology
Systems Biology
Metrics
H-Index
i10 Index
Citation
34
70
5,077
* Rankings
Ranking Based On Selection: 12
Serdar Coskun
Assisted reproduction
embryology and preimplanatation genetic diagnosis
Metrics
H-Index
i10 Index
Citation
34
67
4,097
* Rankings
Ranking Based On Selection: 16
Muhammad M Hammami
Endocrinology
biomedical ethics
clinical study designs
drug analysis
bioequivalence studies
Metrics
H-Index
i10 Index
Citation
30
66
3,652
* Rankings
Ranking Based On Selection: 19
Hazem Ghebeh
Cancer stem cells
Stem cell immunology
Immunotherapy
Biomarker discovery
Metrics
H-Index
i10 Index
Citation
28
36
3,775
* Rankings
Ranking Based On Selection: 22
Fahad S Al-Ajlan
Stroke
Imaging of Stroke
Genetic of stroke and critical care of stroke
Metrics
H-Index
i10 Index
Citation
24
30
2,693
* Rankings
Ranking Based On Selection: 30
Fatimah S Alhamlan
Infectious Diseases
Sexual Transmitted Infections STIs
HPV Cancers
Women's Health Policies
Metrics
H-Index
i10 Index
Citation
22
28
1,454
* Rankings
Ranking Based On Selection: 31
Ahmed Al-Jedai
Pharmacy practice
Transplantation
clinical pharmacy
Healthcare administration
Value-Based Care
Metrics
H-Index
i10 Index
Citation
22
48
1,612
* Rankings
Ranking Based On Selection: 33
Shouki Bazarbashi
Gastro-intestinal and Genitourinary oncology
Guidelines
Clinical Trials
Metrics
H-Index
i10 Index
Citation
22
38
1,985
* Rankings
Ranking Based On Selection: 38
Abdullah M Assiri
Reproductive physiology
Infertility
Fertility preservation
Rodent genome editing
Animal model
Metrics
H-Index
i10 Index
Citation
20
30
1,319
* Rankings
Ranking Based On Selection: 41
Mohammad Afzal Khan
T regulatory cells
Complement cascade
Complement regulatory proteins
Transplant rejection
Microvasculature
Metrics
H-Index
i10 Index
Citation
19
26
1,170
* Rankings
Ranking Based On Selection: 43
Bright Varghese
Mycobacteriology
Microbial Genetics and Molecular Epidemiology
Metrics
H-Index
i10 Index
Citation
18
24
795
* Rankings
Ranking Based On Selection: 45
Liju Ahmed
Respiratory Medicine
Pleural Disease
Pulmonary interventions
Metrics
H-Index
i10 Index
Citation
16
25
2,033
* Rankings
Ranking Based On Selection: 47
Ayman Azzam
Liver transplantation
Hepatobiliary and Pancreatic Surgery
Surgical Oncology
Metrics
H-Index
i10 Index
Citation
16
29
781
* Rankings
Ranking Based On Selection: 64
Amal Qattan
Cancer Metastasis
Cancer Therapeutics
Epigenomics
Functional Genomics
Clinical Research
Metrics
H-Index
i10 Index
Citation
12
14
737
* Rankings
Ranking Based On Selection: 66
Mamdouh Albaqumi
Polycystic Kidney Disease
Lupus Nephritis
Personalized Medicine
Metrics
H-Index
i10 Index
Citation
12
12
1,072
* Rankings
Ranking Based On Selection: 80
Mehenna Arib
metrology of ionizing radiation
calibration
dosimetry
radiation protection
Metrics
H-Index
i10 Index
Citation
8
8
417
* Rankings
Ranking Based On Selection: 87
Sultan M Babar
Primary Care
Sports Medicine
Obesity
Public health
Informatics
Metrics
H-Index
i10 Index
Citation
4
2
83
Rankings
Ranking Based On Selection: 1
Khalid SA Khabar
Metrics
H-Index
i10 Index
Citation Counts
42
68
6,891
mRNA stability
AU-rich elements
Interferon and Cytokine Biology
Rankings
Ranking Based On Selection: 3
Ahmed Ali Al-Qahtani
Metrics
H-Index
i10 Index
Citation Counts
39
99
4,237
Rankings
Ranking Based On Selection: 4
Mohammed Al-Ahdal
Metrics
H-Index
i10 Index
Citation Counts
39
114
5,232
Rankings
Ranking Based On Selection: 5
Mohammed Aa Aldahmesh
Metrics
H-Index
i10 Index
Citation Counts
39
71
4,574
Rankings
Ranking Based On Selection: 6
Yufei Shi
Metrics
H-Index
i10 Index
Citation Counts
37
64
3,838
Rankings
Ranking Based On Selection: 7
Murugan Avaniyapuram Kannan
Metrics
H-Index
i10 Index
Citation Counts
35
47
5,342
Molecular and Cellular Oncology
Signal Transduction
and Genetics.
Rankings
Ranking Based On Selection: 8
Nada Al Tassan
Metrics
H-Index
i10 Index
Citation Counts
34
62
5,874
Medical Genetics
Human Genetics
Cancer
Complex Disorders
Rankings
Ranking Based On Selection: 9
Khaled Alkattan
Metrics
H-Index
i10 Index
Citation Counts
34
91
5,109
Thoracic surgery
lung transplant
medical education
Rankings
Ranking Based On Selection: 10
Dilek Colak
Metrics
H-Index
i10 Index
Citation Counts
34
72
4,092
Computational and Systems Biology
Bioinformatics
Medical Genomics
Computational medicine
Network medicine

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Namik Kaya
Metrics
H-Index
i10 Index
Citation Counts
34
70
5,077
Molecular Genetics
Medical Genomics
NeuroGenetics
Molecular Cytogenetics/Pathology
Systems Biology
Rankings
Ranking Based On Selection: 12
Serdar Coskun
Metrics
H-Index
i10 Index
Citation Counts
34
67
4,097
Assisted reproduction
embryology and preimplanatation genetic diagnosis
Rankings
Ranking Based On Selection: 13
Anas M Alazami
Metrics
H-Index
i10 Index
Citation Counts
33
60
3,948
Rankings
Ranking Based On Selection: 14
Hamoud Al-Mousa
Metrics
H-Index
i10 Index
Citation Counts
31
64
5,117
Rankings
Ranking Based On Selection: 16
Muhammad M Hammami
Metrics
H-Index
i10 Index
Citation Counts
30
66
3,652
Endocrinology
biomedical ethics
clinical study designs
drug analysis
bioequivalence studies
Rankings
Ranking Based On Selection: 19
Hazem Ghebeh
Metrics
H-Index
i10 Index
Citation Counts
28
36
3,775
Cancer stem cells
Stem cell immunology
Immunotherapy
Biomarker discovery
Rankings
Ranking Based On Selection: 20
Tariq Ahmad Masoodi
Metrics
H-Index
i10 Index
Citation Counts
26
45
2,474
Cancer Genomics
Cancer immunology
Artificial Intelligence
Rankings
Ranking Based On Selection: 21
Nasser Alsanea
Metrics
H-Index
i10 Index
Citation Counts
26
42
2,257
Colorectal Surgery
Health Informatics
Cancer Genomics
Rankings
Ranking Based On Selection: 22
Fahad S Al-Ajlan
Metrics
H-Index
i10 Index
Citation Counts
24
30
2,693
Stroke
Imaging of Stroke
Genetic of stroke and critical care of stroke
Rankings
Ranking Based On Selection: 25
Amal Alhefdhi
Metrics
H-Index
i10 Index
Citation Counts
23
30
2,725
Rankings
Ranking Based On Selection: 27
Edward Cupler
Metrics
H-Index
i10 Index
Citation Counts
23
39
3,937
Rankings
Ranking Based On Selection: 28
Ghazi Alsbeih
Metrics
H-Index
i10 Index
Citation Counts
23
41
1,759
Radiation Biology & Biodosimetry
Rankings
Ranking Based On Selection: 30
Fatimah S Alhamlan
Metrics
H-Index
i10 Index
Citation Counts
22
28
1,454
Infectious Diseases
Sexual Transmitted Infections STIs
HPV Cancers
Women's Health Policies
Rankings
Ranking Based On Selection: 31
Ahmed Al-Jedai
Metrics
H-Index
i10 Index
Citation Counts
22
48
1,612
Pharmacy practice
Transplantation
clinical pharmacy
Healthcare administration
Value-Based Care
Rankings
Ranking Based On Selection: 32
Monther Al Alwan
Metrics
H-Index
i10 Index
Citation Counts
22
31
2,470
Rankings
Ranking Based On Selection: 33
Shouki Bazarbashi
Metrics
H-Index
i10 Index
Citation Counts
22
38
1,985
Gastro-intestinal and Genitourinary oncology
Guidelines
Clinical Trials
Rankings
Ranking Based On Selection: 34
Fadel Abdulmohssen Alfadley
Metrics
H-Index
i10 Index
Citation Counts
22
34
1,985
Senior Consultant & Professor of Pediatric Cardiology
Alfaisal University
Rankings
Ranking Based On Selection: 35
Bashayer Al-Mubarak
Metrics
H-Index
i10 Index
Citation Counts
21
25
1,485
Rankings
Ranking Based On Selection: 36
Hindi Al-Hindi
Metrics
H-Index
i10 Index
Citation Counts
21
32
1,548
pathology
brain tumors
thyroid
adrenal paraganglioma
muscle
Rankings
Ranking Based On Selection: 37
Banan Alyounes
Metrics
H-Index
i10 Index
Citation Counts
21
23
2,097
Genetics
Biochemistry
Analytical Biochemistry
Math
Rankings
Ranking Based On Selection: 38
Abdullah M Assiri
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,319
Reproductive physiology
Infertility
Fertility preservation
Rodent genome editing
Animal model
Rankings
Ranking Based On Selection: 40
Islam Ss
Metrics
H-Index
i10 Index
Citation Counts
19
24
1,163
Rankings
Ranking Based On Selection: 41
Mohammad Afzal Khan
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,170
T regulatory cells
Complement cascade
Complement regulatory proteins
Transplant rejection
Microvasculature
Rankings
Ranking Based On Selection: 42
Okarvi Subhani
Metrics
H-Index
i10 Index
Citation Counts
19
25
2,020
Development of peptide-based radiopharmaceuticals for tumor targeting
Rankings
Ranking Based On Selection: 43
Bright Varghese
Metrics
H-Index
i10 Index
Citation Counts
18
24
795
Mycobacteriology
Microbial Genetics and Molecular Epidemiology
Rankings
Ranking Based On Selection: 44
Sandeep Kumar Parvathareddy
Metrics
H-Index
i10 Index
Citation Counts
17
35
862
Rankings
Ranking Based On Selection: 45
Liju Ahmed
Metrics
H-Index
i10 Index
Citation Counts
16
25
2,033
Respiratory Medicine
Pleural Disease
Pulmonary interventions
Rankings
Ranking Based On Selection: 47
Ayman Azzam
Metrics
H-Index
i10 Index
Citation Counts
16
29
781
Liver transplantation
Hepatobiliary and Pancreatic Surgery
Surgical Oncology
Rankings
Ranking Based On Selection: 48
Hussien Elsiesy
Metrics
H-Index
i10 Index
Citation Counts
16
25
1,134
Rankings
Ranking Based On Selection: 49
Irfan Maghfoor
Metrics
H-Index
i10 Index
Citation Counts
16
22
945
Rankings
Ranking Based On Selection: 51
Zeeshan Qadri
Metrics
H-Index
i10 Index
Citation Counts
15
19
1,641
Rankings
Ranking Based On Selection: 52
Alsemari Abdulaziz
Metrics
H-Index
i10 Index
Citation Counts
15
18
1,012
Rankings
Ranking Based On Selection: 53
Maher Hassounah
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,240
Rankings
Ranking Based On Selection: 54
Al Duhailib, Zainab
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,147
Adult Critical Care Medicine
Rankings
Ranking Based On Selection: 56
Osama Alomar
Metrics
H-Index
i10 Index
Citation Counts
14
20
628
Rankings
Ranking Based On Selection: 58
Ahmed Jamjoom
Metrics
H-Index
i10 Index
Citation Counts
13
16
641
Rankings
Ranking Based On Selection: 61
Maysoon Alsagob
Metrics
H-Index
i10 Index
Citation Counts
12
14
545
Rankings
Ranking Based On Selection: 62
Olfat Al-Harazi
Metrics
H-Index
i10 Index
Citation Counts
12
12
858
Rankings
Ranking Based On Selection: 63
Bakr Bin Sadiq
Metrics
H-Index
i10 Index
Citation Counts
12
14
885
Rankings
Ranking Based On Selection: 64
Amal Qattan
Metrics
H-Index
i10 Index
Citation Counts
12
14
737
Cancer Metastasis
Cancer Therapeutics
Epigenomics
Functional Genomics
Clinical Research
Rankings
Ranking Based On Selection: 65
Mohammed Rizwanullah
Metrics
H-Index
i10 Index
Citation Counts
12
13
1,037
Rankings
Ranking Based On Selection: 66
Mamdouh Albaqumi
Metrics
H-Index
i10 Index
Citation Counts
12
12
1,072
Polycystic Kidney Disease
Lupus Nephritis
Personalized Medicine
Rankings
Ranking Based On Selection: 67
Rawan Almass
Metrics
H-Index
i10 Index
Citation Counts
11
13
491
Rankings
Ranking Based On Selection: 69
Meshael Al Swailem
Metrics
H-Index
i10 Index
Citation Counts
11
11
462
Rankings
Ranking Based On Selection: 70
Hakeam Hakeam
Metrics
H-Index
i10 Index
Citation Counts
11
13
608
Perioperative pharmacotherapy
surgical parenteral nutrition
thrombosis
Rankings
Ranking Based On Selection: 71
Osman A Hamour
Metrics
H-Index
i10 Index
Citation Counts
11
12
421
Rankings
Ranking Based On Selection: 72
Amr Mousa
Metrics
H-Index
i10 Index
Citation Counts
10
11
485
Rankings
Ranking Based On Selection: 73
Fahad Al-Hazzani
Metrics
H-Index
i10 Index
Citation Counts
10
10
706
Rankings
Ranking Based On Selection: 74
Mohei Abouzied
Metrics
H-Index
i10 Index
Citation Counts
10
13
699
Rankings
Ranking Based On Selection: 75
Lina Alfantoukh
Metrics
H-Index
i10 Index
Citation Counts
9
9
444
Trust
Decision-Making
Artificial Intelligence
Blockchain
IoT
Rankings
Ranking Based On Selection: 76
Krishnanand Mishra
Metrics
H-Index
i10 Index
Citation Counts
9
9
1,737
Biotechnology
radiation biology
cancer biology
Rankings
Ranking Based On Selection: 77
Sarfraz Saleemi
Metrics
H-Index
i10 Index
Citation Counts
9
9
515
Medicine/Pulmonary Medicine
Rankings
Ranking Based On Selection: 78
Yazid Maghrabi
Metrics
H-Index
i10 Index
Citation Counts
8
4
177
Rankings
Ranking Based On Selection: 79
Fawzi Babtain
Metrics
H-Index
i10 Index
Citation Counts
8
8
173
Rankings
Ranking Based On Selection: 80
Mehenna Arib
Metrics
H-Index
i10 Index
Citation Counts
8
8
417
metrology of ionizing radiation
calibration
dosimetry
radiation protection
Rankings
Ranking Based On Selection: 81
Nasser Mahdi
Metrics
H-Index
i10 Index
Citation Counts
8
8
376
Cardivascular Medicine
Interventional Cardiology
Rankings
Ranking Based On Selection: 83
Khalid Alqadi
Metrics
H-Index
i10 Index
Citation Counts
6
5
632
Rankings
Ranking Based On Selection: 85
Husam Al-Rumaih
Metrics
H-Index
i10 Index
Citation Counts
5
2
102
Rankings
Ranking Based On Selection: 86
Nabila Ben Slimane
Metrics
H-Index
i10 Index
Citation Counts
4
3
141
Healthcare
health informatics
health economy
mutliple scelerosis
Rankings
Ranking Based On Selection: 87
Sultan M Babar
Metrics
H-Index
i10 Index
Citation Counts
4
2
83
Primary Care
Sports Medicine
Obesity
Public health
Informatics
Rankings
Ranking Based On Selection: 88
Gassan Abudari
Metrics
H-Index
i10 Index
Citation Counts
3
3
219
Rankings
Ranking Based On Selection: 89
Bashar Horanieh
Metrics
H-Index
i10 Index
Citation Counts
3
1
59
Rankings
Ranking Based On Selection: 90
Lamia Moheb Almorsy
Metrics
H-Index
i10 Index
Citation Counts
3
1
39
Rankings
Ranking Based On Selection: 93
Sajjad Zaidi
Metrics
H-Index
i10 Index
Citation Counts
2
2
32
Rankings
Ranking Based On Selection: 95
Musadak Karrar
Metrics
H-Index
i10 Index
Citation Counts
2
1
51
Rankings
Ranking Based On Selection: 96
Dennis Dantic
Metrics
H-Index
i10 Index
Citation Counts
1
1
103
Rankings
Ranking Based On Selection: 100
Hidayatullah
Metrics
H-Index
i10 Index
Citation Counts
1
0
1