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" (931,956 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: 6
Osman Elmahi
Antimicrobial Resistance
Climate Change
Global Health
Ophthalmology
Health Policy
Metrics
H-Index
i10 Index
Citation
8
8
302
* Rankings
Ranking Based On Selection: 7
Talal Ahmed Awad Adlan
Biochemistry
ٍSynthetic Organic Chemistry and Drug Design
Metrics
H-Index
i10 Index
Citation
8
8
255

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* Rankings
Ranking Based On Selection: 13
Faaiz Alhamdani
oral surgery
qualitative research
educational research
quality of life research
Metrics
H-Index
i10 Index
Citation
6
3
150
* Rankings
Ranking Based On Selection: 14
Rajaa S. Abbas
Photodynamic Therapy
Cancer
Gene therapy
Pathology
Microbiology
Metrics
H-Index
i10 Index
Citation
5
5
112
* Rankings
Ranking Based On Selection: 21
Nooruldeen Q Ismaeel
Security of cloud storage
distributed computing/Networking
Data Security and Encryption
Computer network
Wireless sensor net
Metrics
H-Index
i10 Index
Citation
4
2
59
* Rankings
Ranking Based On Selection: 26
Oday Abbas
Public health
mycotoxin
cancer research
veterinary medicine
microbiology
Metrics
H-Index
i10 Index
Citation
4
1
31
* Rankings
Ranking Based On Selection: 32
Haron H. Ahmed
Heavy metals
air pollution
water pollution
microbiome
Metrics
H-Index
i10 Index
Citation
3
1
39
* Rankings
Ranking Based On Selection: 33
Nebras Rada Mohammed
عالم وباحثة ومخترعة ومؤلفة ومبدعة وسفير الاختراع الدولي وخبير ومستشا
Metrics
H-Index
i10 Index
Citation
3
1
35
* Rankings
Ranking Based On Selection: 40
Ali Saadi Albaer
Green synthesis of Nanoparticles
small animals lab
phytochemistry
Pharmacognosy
Metrics
H-Index
i10 Index
Citation
2
1
23
* Rankings
Ranking Based On Selection: 44
Ibtihal A Ahmed
Molecular biology
Microbiology
Bioinformatic
Parasitology
Metrics
H-Index
i10 Index
Citation
1
1
18
* Rankings
Ranking Based On Selection: 46
Muna Abu Gosseisa
Machine learning
ICT in context of e-learning and e-education
Metrics
H-Index
i10 Index
Citation
1
0
2
Rankings
Ranking Based On Selection: 2
Nasr Eldin Ahmed Mahmoud
Metrics
H-Index
i10 Index
Citation Counts
16
18
791
Rankings
Ranking Based On Selection: 4
Kamil M Ali Shabaan
Metrics
H-Index
i10 Index
Citation Counts
10
11
348
Rankings
Ranking Based On Selection: 6
Osman Elmahi
Metrics
H-Index
i10 Index
Citation Counts
8
8
302
Antimicrobial Resistance
Climate Change
Global Health
Ophthalmology
Health Policy
Rankings
Ranking Based On Selection: 7
Talal Ahmed Awad Adlan
Metrics
H-Index
i10 Index
Citation Counts
8
8
255
Biochemistry
ٍSynthetic Organic Chemistry and Drug Design
Rankings
Ranking Based On Selection: 8
Tiba Nezar Hasan
Metrics
H-Index
i10 Index
Citation Counts
8
7
200
Rankings
Ranking Based On Selection: 9
النانوتكنلوجي
الفيزياء الطبية
Rankings
Ranking Based On Selection: 10
Hala Mohammed Majeed
Metrics
H-Index
i10 Index
Citation Counts
8
7
156
البحوث العلمية

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Rankings
Ranking Based On Selection: 11
Sinan B Alrifai
Metrics
H-Index
i10 Index
Citation Counts
7
3
146
Rankings
Ranking Based On Selection: 12
Sahar Jk Al-Hiali
Metrics
H-Index
i10 Index
Citation Counts
6
4
143
physiology
respiratory system
hematology
endocrine system
Rankings
Ranking Based On Selection: 13
Faaiz Alhamdani
Metrics
H-Index
i10 Index
Citation Counts
6
3
150
oral surgery
qualitative research
educational research
quality of life research
Rankings
Ranking Based On Selection: 14
Rajaa S. Abbas
Metrics
H-Index
i10 Index
Citation Counts
5
5
112
Photodynamic Therapy
Cancer
Gene therapy
Pathology
Microbiology
Rankings
Ranking Based On Selection: 15
Mutaz Sabah
Metrics
H-Index
i10 Index
Citation Counts
5
3
78
Rankings
Ranking Based On Selection: 17
Ahmed El Safi
Metrics
H-Index
i10 Index
Citation Counts
5
4
248
Rankings
Ranking Based On Selection: 18
Mohammed Abdelgadir Mahdi Osman
Metrics
H-Index
i10 Index
Citation Counts
5
3
128
Rankings
Ranking Based On Selection: 19
Biochemistry
Cancer research
Biorisk Management
Communicable and non-communicable diseases
Rankings
Ranking Based On Selection: 20
Rankings
Ranking Based On Selection: 21
Nooruldeen Q Ismaeel
Metrics
H-Index
i10 Index
Citation Counts
4
2
59
Security of cloud storage
distributed computing/Networking
Data Security and Encryption
Computer network
Wireless sensor net
Rankings
Ranking Based On Selection: 22
Dahlia N. Alsaidi
Metrics
H-Index
i10 Index
Citation Counts
4
2
56
امراض وسرطانات الدم
Rankings
Ranking Based On Selection: 23
Mohammed Ayyed Najm
Metrics
H-Index
i10 Index
Citation Counts
4
1
58
Pharmaceutical BioTechnology
Pharmaceutics
Molecular Genetics
Molecular Oncology
Rankings
Ranking Based On Selection: 25
Rashad Ayad Al-Heety
Metrics
H-Index
i10 Index
Citation Counts
4
0
33
Rankings
Ranking Based On Selection: 26
Oday Abbas
Metrics
H-Index
i10 Index
Citation Counts
4
1
31
Public health
mycotoxin
cancer research
veterinary medicine
microbiology
Rankings
Ranking Based On Selection: 27
Abdullah Alhusseiny
Metrics
H-Index
i10 Index
Citation Counts
3
3
87
applied physics
Medical physics
Nanomaterials
Rankings
Ranking Based On Selection: 28
Israa Al-Sudani
Metrics
H-Index
i10 Index
Citation Counts
3
3
47
Rankings
Ranking Based On Selection: 29
Muhideen. A. Hasan
Metrics
H-Index
i10 Index
Citation Counts
3
1
44
Medical instrumentation
Signal Processing
Rankings
Ranking Based On Selection: 30
Muhideen Abbas Hasan
Metrics
H-Index
i10 Index
Citation Counts
3
1
44
Electronics
Biomedical Engineering
Signal Processing
Rankings
Ranking Based On Selection: 31
Raya Rashid
Metrics
H-Index
i10 Index
Citation Counts
3
1
44
Rankings
Ranking Based On Selection: 32
Haron H. Ahmed
Metrics
H-Index
i10 Index
Citation Counts
3
1
39
Heavy metals
air pollution
water pollution
microbiome
Rankings
Ranking Based On Selection: 33
Nebras Rada Mohammed
Metrics
H-Index
i10 Index
Citation Counts
3
1
35
عالم وباحثة ومخترعة ومؤلفة ومبدعة وسفير الاختراع الدولي وخبير ومستشا
Rankings
Ranking Based On Selection: 34
Khaldoun L Hameed
Metrics
H-Index
i10 Index
Citation Counts
3
1
35
information technology
data security
data compression
Rankings
Ranking Based On Selection: 35
Lubna Ahmed Kafi
Metrics
H-Index
i10 Index
Citation Counts
3
0
34
الطبية والدوائية
Rankings
Ranking Based On Selection: 36
Ehan Al-Sharifi
Metrics
H-Index
i10 Index
Citation Counts
3
0
30
Rankings
Ranking Based On Selection: 37
Mohamed Ibrahim Mohamed
Metrics
H-Index
i10 Index
Citation Counts
3
1
48
Rankings
Ranking Based On Selection: 39
Amal Farouk Ab. Alfath Aldawi
Metrics
H-Index
i10 Index
Citation Counts
2
2
124
Rankings
Ranking Based On Selection: 40
Ali Saadi Albaer
Metrics
H-Index
i10 Index
Citation Counts
2
1
23
Green synthesis of Nanoparticles
small animals lab
phytochemistry
Pharmacognosy
Rankings
Ranking Based On Selection: 43
Hasan A Hasan
Metrics
H-Index
i10 Index
Citation Counts
1
1
19
Rankings
Ranking Based On Selection: 44
Ibtihal A Ahmed
Metrics
H-Index
i10 Index
Citation Counts
1
1
18
Molecular biology
Microbiology
Bioinformatic
Parasitology
Rankings
Ranking Based On Selection: 45
Rankings
Ranking Based On Selection: 46
Muna Abu Gosseisa
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
Machine learning
ICT in context of e-learning and e-education
Rankings
Ranking Based On Selection: 47
Mohammed Qassim
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
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