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 rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,121,279 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Amin Jajarmi
Optimal Control
Fractional Calculus
Fractional Differential Equations
Mathematical Modellin
Metrics
 
H-Index
i10 Index
Citation
48
63
7,476
* Rankings
Ranking Based On Selection: 3
Gholam Hassan Khajavy
applied linguistics
second language acquisition
individual differences
research methodolog
Metrics
 
H-Index
i10 Index
Citation
32
46
3,903
* Rankings
Ranking Based On Selection: 4
Majid Elahi Shirvan
Positive Psychology in Applied Linguistics
Ecological Research in Applied Linguistic
Metrics
 
H-Index
i10 Index
Citation
28
59
2,858
* Rankings
Ranking Based On Selection: 7
Morteza Esfandyari
Microbial Fuel cell
modeling and simulation
Gas process
water treatmen
Metrics
 
H-Index
i10 Index
Citation
21
37
1,941
* Rankings
Ranking Based On Selection: 8
Mahdi Bayat
Modeling and Simulation
Optimization
Coupling reactor
Membrane
Neural networ
Metrics
 
H-Index
i10 Index
Citation
21
33
1,083
* Rankings
Ranking Based On Selection: 9
Mehdi Koohmishi
Transportation Geotechnics
Railway Engineerin
Metrics
 
H-Index
i10 Index
Citation
18
23
708
* Rankings
Ranking Based On Selection: 10
Hossein Karimi
Facility Location
Multiple Criteria Decision Making
Vehicle Routing Problem
Hub Location
Integer Programmin
Metrics
 
H-Index
i10 Index
Citation
16
21
930
* Rankings
Ranking Based On Selection: 11
Elyas Barabadi
Perfectionism
WTC
achievement emotions
playfulness
foreign language effec
Metrics
 
H-Index
i10 Index
Citation
15
21
1,145
* Rankings
Ranking Based On Selection: 12
Ali Khazaee
Artificial Intelligence
Neuroimaging
Biomedical Signal Processing
Machine Learnin
Metrics
 
H-Index
i10 Index
Citation
15
19
1,895
* Rankings
Ranking Based On Selection: 15
Mohsen Rostamian Delavar
Fixed Point Theory
Convex Function Analysis
Minimal Space
Minimax Inequality
KKM Theore
Metrics
 
H-Index
i10 Index
Citation
14
21
917
* Rankings
Ranking Based On Selection: 18
Seyyed Ehsan Golparvar
Second language writing
Academic writing
ESP
Corpus linguistic
Metrics
 
H-Index
i10 Index
Citation
12
16
506
* Rankings
Ranking Based On Selection: 19
Gholamhossein Khorrami
Materials Science Physics and nano electroceramic
Metrics
 
H-Index
i10 Index
Citation
12
12
615
* Rankings
Ranking Based On Selection: 20
Zahra Nikkhah-Farkhani
Human Resource management
Soft Skills
Performance Appraisal
Talent Management
Data Based Managemen
Metrics
 
H-Index
i10 Index
Citation
12
13
357
* Rankings
Ranking Based On Selection: 22
Mohsen Kian
Mathematical Analysis
Matrix Analysis
Operator Theor
Metrics
 
H-Index
i10 Index
Citation
12
15
588
* Rankings
Ranking Based On Selection: 23
Sadegh Garivani
Steel Structures
Passive Control
Energy Based Design
Structural Fire Engineering
Progressive Collaps
Metrics
 
H-Index
i10 Index
Citation
11
12
434
* Rankings
Ranking Based On Selection: 25
Tayebe Rahimi Pordanjani
Industrial and Organizational Psycholog
Metrics
 
H-Index
i10 Index
Citation
11
14
464
Rankings
Ranking Based On Selection: 1
Amin Jajarmi
Metrics
 
H-Index
i10 Index
Citation Counts
48
63
7,476
Optimal Control
Fractional Calculus
Fractional Differential Equations
Mathematical Modellin
Rankings
Ranking Based On Selection: 2
Amin Amiri Delouei|A. A. Delouei, A. Amiri Delouei
Metrics
 
H-Index
i10 Index
Citation Counts
43
66
3,573
Rankings
Ranking Based On Selection: 3
Gholam Hassan Khajavy
Metrics
 
H-Index
i10 Index
Citation Counts
32
46
3,903
applied linguistics
second language acquisition
individual differences
research methodolog
Rankings
Ranking Based On Selection: 4
Majid Elahi Shirvan
Metrics
 
H-Index
i10 Index
Citation Counts
28
59
2,858
Positive Psychology in Applied Linguistics
Ecological Research in Applied Linguistic
Rankings
Ranking Based On Selection: 5
Abolfazl Mohammadi
Metrics
 
H-Index
i10 Index
Citation Counts
25
36
1,839
Rankings
Ranking Based On Selection: 6
Alireza Azarhoosh
Metrics
 
H-Index
i10 Index
Citation Counts
21
32
1,871
Rankings
Ranking Based On Selection: 7
Morteza Esfandyari
Metrics
 
H-Index
i10 Index
Citation Counts
21
37
1,941
Microbial Fuel cell
modeling and simulation
Gas process
water treatmen
Rankings
Ranking Based On Selection: 8
Mahdi Bayat
Metrics
 
H-Index
i10 Index
Citation Counts
21
33
1,083
Modeling and Simulation
Optimization
Coupling reactor
Membrane
Neural networ
Rankings
Ranking Based On Selection: 9
Mehdi Koohmishi
Metrics
 
H-Index
i10 Index
Citation Counts
18
23
708
Rankings
Ranking Based On Selection: 10
Hossein Karimi
Metrics
 
H-Index
i10 Index
Citation Counts
16
21
930
Facility Location
Multiple Criteria Decision Making
Vehicle Routing Problem
Hub Location
Integer Programmin
Rankings
Ranking Based On Selection: 11
Elyas Barabadi
Metrics
 
H-Index
i10 Index
Citation Counts
15
21
1,145
Perfectionism
WTC
achievement emotions
playfulness
foreign language effec
Rankings
Ranking Based On Selection: 12
Ali Khazaee
Metrics
 
H-Index
i10 Index
Citation Counts
15
19
1,895
Artificial Intelligence
Neuroimaging
Biomedical Signal Processing
Machine Learnin
Rankings
Ranking Based On Selection: 13
Mohammad Reza Ghorbani
Metrics
 
H-Index
i10 Index
Citation Counts
15
16
673
Rankings
Ranking Based On Selection: 14
Hossein Delavari Amrei
Metrics
 
H-Index
i10 Index
Citation Counts
14
16
629
Rankings
Ranking Based On Selection: 15
Mohsen Rostamian Delavar
Metrics
 
H-Index
i10 Index
Citation Counts
14
21
917
Fixed Point Theory
Convex Function Analysis
Minimal Space
Minimax Inequality
KKM Theore
Rankings
Ranking Based On Selection: 16
Hossein Taherichadorneshin
Metrics
 
H-Index
i10 Index
Citation Counts
14
18
832
Rankings
Ranking Based On Selection: 17
Morteza Nazifi
Metrics
 
H-Index
i10 Index
Citation Counts
13
14
608
Rankings
Ranking Based On Selection: 18
Seyyed Ehsan Golparvar
Metrics
 
H-Index
i10 Index
Citation Counts
12
16
506
Second language writing
Academic writing
ESP
Corpus linguistic
Rankings
Ranking Based On Selection: 19
Gholamhossein Khorrami
Metrics
 
H-Index
i10 Index
Citation Counts
12
12
615
Materials Science Physics and nano electroceramic
Rankings
Ranking Based On Selection: 20
Zahra Nikkhah-Farkhani
Metrics
 
H-Index
i10 Index
Citation Counts
12
13
357
Human Resource management
Soft Skills
Performance Appraisal
Talent Management
Data Based Managemen
Rankings
Ranking Based On Selection: 21
Malahat Amani
Metrics
 
H-Index
i10 Index
Citation Counts
12
12
421
Rankings
Ranking Based On Selection: 22
Mohsen Kian
Metrics
 
H-Index
i10 Index
Citation Counts
12
15
588
Mathematical Analysis
Matrix Analysis
Operator Theor
Rankings
Ranking Based On Selection: 23
Sadegh Garivani
Metrics
 
H-Index
i10 Index
Citation Counts
11
12
434
Steel Structures
Passive Control
Energy Based Design
Structural Fire Engineering
Progressive Collaps
Rankings
Ranking Based On Selection: 24
Ali Mohammadzadeh Ebrahimi
Metrics
 
H-Index
i10 Index
Citation Counts
11
15
427
Rankings
Ranking Based On Selection: 25
Tayebe Rahimi Pordanjani
Metrics
 
H-Index
i10 Index
Citation Counts
11
14
464