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
Yuhao Zhang
power electronics
power semiconductor
electron device
wide bandgap
ultra-wide bandgap
Metrics
H-Index
i10 Index
Citation
50
119
9,056
* Rankings
Ranking Based On Selection :2
Lijuan Yuan
Rotavirus
norovirus
probiotics
viral diarrhea
Metrics
H-Index
i10 Index
Citation
46
82
5,627
* Rankings
Ranking Based On Selection :3
Cayelan C Carey
ecosystem science
data science
limnology
ecological forecasting
biogeochemistry
Metrics
H-Index
i10 Index
Citation
44
107
7,864
* Rankings
Ranking Based On Selection :6
Kylene Kehn-Hall
Alphaviruses
Rift Valley fever virus
therapeutics
SARS-CoV-2
host-pathogen interactions
Metrics
H-Index
i10 Index
Citation
44
110
6,327
* Rankings
Ranking Based On Selection :8
John B Matson
H2S
Gasotransmitters
Bottlebrush Polymers
Glycomaterials
Depolymerization
Metrics
H-Index
i10 Index
Citation
42
91
6,782
* Rankings
Ranking Based On Selection :13
Masoud Agah
MEMS
Microfluidics
Micro Analytical Chemistry
3D Dielectrophoresis
Cancer Engineering
Metrics
H-Index
i10 Index
Citation
42
101
5,491
* Rankings
Ranking Based On Selection :14
Clifford A Shaffer
Data Structures and Algorithms
Algorithm Visualization
Computational Biology
Digital Education
Metrics
H-Index
i10 Index
Citation
42
119
5,830
* Rankings
Ranking Based On Selection :18
Joel Snodgrass
Urban Ecology and Conservation
Landscape Ecology
Conservation Biology
Metrics
H-Index
i10 Index
Citation
40
66
5,016
* Rankings
Ranking Based On Selection :20
Amanda Morris
Photoelectrochemistry
Artificial Photosynthesis
Metal Organic Frameworks
Catalysis
Energy Transfer
Metrics
H-Index
i10 Index
Citation
39
71
6,733
* Rankings
Ranking Based On Selection :22
James H Westwood
Parasitic Plants
Plant Communication
RNA mobility
Weed Evolution
VT Translational Plant Sciences
Metrics
H-Index
i10 Index
Citation
39
64
6,789
* Rankings
Ranking Based On Selection :26
Jin-Hee Cho
AI-based cybersecurity
decision making under uncertainty
network science
Metrics
H-Index
i10 Index
Citation
38
108
7,376
* Rankings
Ranking Based On Selection :27
Zehua Liu
EBPR
endocrine disrupting chemicals
Dairy Manure
Nutrient removal and resource utilization
Metrics
H-Index
i10 Index
Citation
38
71
5,295
* Rankings
Ranking Based On Selection :29
Kathy Lu
novel materials
energy materials
high temperature materials
polymer-derived materials
Metrics
H-Index
i10 Index
Citation
38
148
6,351
* Rankings
Ranking Based On Selection :30
Marius Orlowski
Transistor physics
CMOS Technology
diffusion phenomena
resistive switching devices
nonvolatile memory..
Metrics
H-Index
i10 Index
Citation
38
123
5,421
* Rankings
Ranking Based On Selection :34
Brian M Kleiner
Occupational Safety
Health and Well-being
Macro/Systems Ergonomics
Human Factors Engineering
Leadership/Project Management
Metrics
H-Index
i10 Index
Citation
37
80
5,637
* Rankings
Ranking Based On Selection :35
Stephen Edwards
computer science education
software testing
software reuse
software engineering
Metrics
H-Index
i10 Index
Citation
37
105
5,674
* Rankings
Ranking Based On Selection :38
Uwe C Tauber
Statistical physics
Biological physics
Condensed matter theory
Metrics
H-Index
i10 Index
Citation
37
78
5,362
* Rankings
Ranking Based On Selection :39
Mehdi Ashraf-Khorassani
Chromatography
LC/MS/MS
GC/MS
Sample Preparation
SFC/SFE
Metrics
H-Index
i10 Index
Citation
37
101
4,631
* Rankings
Ranking Based On Selection :43
Brian Romans
Sedimentology
Basin Analysis
Paleoceanography
Sedimentary Geology
Marine Geology
Metrics
H-Index
i10 Index
Citation
35
57
4,881
* Rankings
Ranking Based On Selection :46
Adrian Rodriguez-Marek
Geotechnical Engineering
Earthquake Engineering
engineering seismology
ground motions
seismic hazard analysis
Metrics
H-Index
i10 Index
Citation
35
75
5,227
* Rankings
Ranking Based On Selection :47
Brent Ledvina
Navigation
GPS
ionospheric physics
scintillations
Metrics
H-Index
i10 Index
Citation
35
55
5,760
* Rankings
Ranking Based On Selection :48
Christopher Beattie
Model reduction
Computational linear algebra
Numerical analysis
Scientific computing
VT Math
Metrics
H-Index
i10 Index
Citation
35
61
4,773
* Rankings
Ranking Based On Selection :51
Elankumaran Subbiah
Molecular Virology
Vaccines
Nanotherapeutics
Oncolytic viruses
Influenza
Metrics
H-Index
i10 Index
Citation
34
55
5,820
* Rankings
Ranking Based On Selection :54
Kirk Cameron
Green Computing
High Performance Computing
Runtime Systems
Performance Modeling
Power-aware Computing
Metrics
H-Index
i10 Index
Citation
34
78
5,221
* Rankings
Ranking Based On Selection :56
Leah R Johnson
statistics
ecology
mathematical biology
physics
Metrics
H-Index
i10 Index
Citation
33
47
5,504
* Rankings
Ranking Based On Selection :58
Tm Murali
Computational systems biology
computationally-driven experimental biology
design and analysis of algorithms
Metrics
H-Index
i10 Index
Citation
33
61
5,674
* Rankings
Ranking Based On Selection :60
Justin Lemkul
Molecular modeling and simulation
polarizable force field development
CADD
Metrics
H-Index
i10 Index
Citation
32
47
7,409
* Rankings
Ranking Based On Selection :61
Jinsuo Zhang
corrosion
nuclear materials
electrochemistry
molten salt
liquid metal
Metrics
H-Index
i10 Index
Citation
32
95
5,285
* Rankings
Ranking Based On Selection :63
John A Richey
Social Anxiety
Reward
Mindfulness
Neuroscience
Autism
Metrics
H-Index
i10 Index
Citation
32
46
5,707
* Rankings
Ranking Based On Selection :67
Virgilio Centeno
Synchrophasors
Wide Area Measurement
Adpative Protection
Power Engineering Education
Metrics
H-Index
i10 Index
Citation
31
57
5,220
* Rankings
Ranking Based On Selection :69
James Tokuhisa
Plant Chemical Defense
VT Biological Sciences
VT Translational Plant Sciences
Metrics
H-Index
i10 Index
Citation
30
37
5,366
* Rankings
Ranking Based On Selection :75
Peter E Doolittle
technology
constructivism
multimedia
social studies
teaching
Metrics
H-Index
i10 Index
Citation
27
44
4,940
* Rankings
Ranking Based On Selection :79
Cynthia E Devers
Strategic Leadership Governance & Compensation
Gender
Social evaluations
Stigma
Reputation
Metrics
H-Index
i10 Index
Citation
24
29
5,882
Rankings
Ranking Based On Selection: 1
Yuhao Zhang
Metrics
H-Index
i10 Index
Citation Counts
50
119
9,056
power electronics
power semiconductor
electron device
wide bandgap
ultra-wide bandgap
Rankings
Ranking Based On Selection: 2
Lijuan Yuan
Metrics
H-Index
i10 Index
Citation Counts
46
82
5,627
Rotavirus
norovirus
probiotics
viral diarrhea
Rankings
Ranking Based On Selection: 3
Cayelan C Carey
Metrics
H-Index
i10 Index
Citation Counts
44
107
7,864
ecosystem science
data science
limnology
ecological forecasting
biogeochemistry
Rankings
Ranking Based On Selection: 4
John Rossmeisl
Metrics
H-Index
i10 Index
Citation Counts
44
118
6,759
Neurooncology
neurosurgery
brain tumors
glioma
ICTAS
Rankings
Ranking Based On Selection: 5
Carl Zipper
Metrics
H-Index
i10 Index
Citation Counts
44
122
6,165
Rankings
Ranking Based On Selection: 6
Kylene Kehn-Hall
Metrics
H-Index
i10 Index
Citation Counts
44
110
6,327
Alphaviruses
Rift Valley fever virus
therapeutics
SARS-CoV-2
host-pathogen interactions
Rankings
Ranking Based On Selection: 7
John R Morris
Metrics
H-Index
i10 Index
Citation Counts
43
93
5,069
Surface Science
Chemistry
and Physics
Rankings
Ranking Based On Selection: 8
John B Matson
Metrics
H-Index
i10 Index
Citation Counts
42
91
6,782
H2S
Gasotransmitters
Bottlebrush Polymers
Glycomaterials
Depolymerization
Rankings
Ranking Based On Selection: 10
James Hawdon
Metrics
H-Index
i10 Index
Citation Counts
42
82
5,234
Rankings
Ranking Based On Selection: 11
Liqing Zhang
Metrics
H-Index
i10 Index
Citation Counts
42
123
7,421
Rankings
Ranking Based On Selection: 12
Jd Fraser
Metrics
H-Index
i10 Index
Citation Counts
42
125
5,832
Rankings
Ranking Based On Selection: 13
Masoud Agah
Metrics
H-Index
i10 Index
Citation Counts
42
101
5,491
MEMS
Microfluidics
Micro Analytical Chemistry
3D Dielectrophoresis
Cancer Engineering
Rankings
Ranking Based On Selection: 14
Clifford A Shaffer
Metrics
H-Index
i10 Index
Citation Counts
42
119
5,830
Data Structures and Algorithms
Algorithm Visualization
Computational Biology
Digital Education
Rankings
Ranking Based On Selection: 16
William Knocke
Metrics
H-Index
i10 Index
Citation Counts
42
64
4,558
Rankings
Ranking Based On Selection: 17
Sarah Clinton
Metrics
H-Index
i10 Index
Citation Counts
40
59
5,815
neuroscience
VT School of Neuroscience
Rankings
Ranking Based On Selection: 18
Joel Snodgrass
Metrics
H-Index
i10 Index
Citation Counts
40
66
5,016
Urban Ecology and Conservation
Landscape Ecology
Conservation Biology
Rankings
Ranking Based On Selection: 19
Ina Hoeschele
Metrics
H-Index
i10 Index
Citation Counts
40
72
4,959
Rankings
Ranking Based On Selection: 20
Amanda Morris
Metrics
H-Index
i10 Index
Citation Counts
39
71
6,733
Photoelectrochemistry
Artificial Photosynthesis
Metal Organic Frameworks
Catalysis
Energy Transfer
Rankings
Ranking Based On Selection: 21
Dong Dong
Metrics
H-Index
i10 Index
Citation Counts
39
127
7,416
electrical power conversion
power electronics
renewable energy system
Rankings
Ranking Based On Selection: 22
James H Westwood
Metrics
H-Index
i10 Index
Citation Counts
39
64
6,789
Parasitic Plants
Plant Communication
RNA mobility
Weed Evolution
VT Translational Plant Sciences
Rankings
Ranking Based On Selection: 23
Scott W Case
Metrics
H-Index
i10 Index
Citation Counts
39
89
5,325
Structural Response
Composite Materials
Fuel Cells
Constitutive Behavior
Rankings
Ranking Based On Selection: 24
Vassilios Kovanis
Metrics
H-Index
i10 Index
Citation Counts
39
90
5,253
Rankings
Ranking Based On Selection: 25
John Seiler
Metrics
H-Index
i10 Index
Citation Counts
39
104
4,606
Rankings
Ranking Based On Selection: 26
Jin-Hee Cho
Metrics
H-Index
i10 Index
Citation Counts
38
108
7,376
AI-based cybersecurity
decision making under uncertainty
network science
Rankings
Ranking Based On Selection: 27
Zehua Liu
Metrics
H-Index
i10 Index
Citation Counts
38
71
5,295
EBPR
endocrine disrupting chemicals
Dairy Manure
Nutrient removal and resource utilization
Rankings
Ranking Based On Selection: 28
Durelle Scott
Metrics
H-Index
i10 Index
Citation Counts
38
60
6,139
Rankings
Ranking Based On Selection: 29
Kathy Lu
Metrics
H-Index
i10 Index
Citation Counts
38
148
6,351
novel materials
energy materials
high temperature materials
polymer-derived materials
Rankings
Ranking Based On Selection: 30
Marius Orlowski
Metrics
H-Index
i10 Index
Citation Counts
38
123
5,421
Transistor physics
CMOS Technology
diffusion phenomena
resistive switching devices
nonvolatile memory..
Rankings
Ranking Based On Selection: 31
Tao Lin
Metrics
H-Index
i10 Index
Citation Counts
37
73
4,659
Computational Mathematics
Numerical Methods for PDEs
Rankings
Ranking Based On Selection: 32
Christopher Zobel
Metrics
H-Index
i10 Index
Citation Counts
37
65
5,203
Supply chain resilience
Disaster operations management
Humanitarian logistics
Rankings
Ranking Based On Selection: 33
Guoliang Greg Liu
Metrics
H-Index
i10 Index
Citation Counts
37
72
5,104
block copolymer
anisotropic nanoparticle
ICTAS
Rankings
Ranking Based On Selection: 34
Brian M Kleiner
Metrics
H-Index
i10 Index
Citation Counts
37
80
5,637
Occupational Safety
Health and Well-being
Macro/Systems Ergonomics
Human Factors Engineering
Leadership/Project Management
Rankings
Ranking Based On Selection: 35
Stephen Edwards
Metrics
H-Index
i10 Index
Citation Counts
37
105
5,674
computer science education
software testing
software reuse
software engineering
Rankings
Ranking Based On Selection: 36
Michael Fox
Metrics
H-Index
i10 Index
Citation Counts
37
60
5,466
Neuroscience
Developmental neurobiology
Biology
Rankings
Ranking Based On Selection: 37
Jeannine Strobl
Metrics
H-Index
i10 Index
Citation Counts
37
67
5,171
Rankings
Ranking Based On Selection: 38
Uwe C Tauber
Metrics
H-Index
i10 Index
Citation Counts
37
78
5,362
Statistical physics
Biological physics
Condensed matter theory
Rankings
Ranking Based On Selection: 39
Mehdi Ashraf-Khorassani
Metrics
H-Index
i10 Index
Citation Counts
37
101
4,631
Chromatography
LC/MS/MS
GC/MS
Sample Preparation
SFC/SFE
Rankings
Ranking Based On Selection: 40
David Orden
Metrics
H-Index
i10 Index
Citation Counts
37
96
4,813
Rankings
Ranking Based On Selection: 41
Tina Savla Or Jyoti Savla
Metrics
H-Index
i10 Index
Citation Counts
36
71
6,259
Rankings
Ranking Based On Selection: 42
Gary Pickrell
Metrics
H-Index
i10 Index
Citation Counts
36
97
5,436
optical fiber sensors
photonics
glass
ceramic matrix composites
biomaterials
Rankings
Ranking Based On Selection: 43
Brian Romans
Metrics
H-Index
i10 Index
Citation Counts
35
57
4,881
Sedimentology
Basin Analysis
Paleoceanography
Sedimentary Geology
Marine Geology
Rankings
Ranking Based On Selection: 44
Elizabeth Gilbert
Metrics
H-Index
i10 Index
Citation Counts
35
90
5,902
VT School of Neuroscience
VT Animal and Poultry Sciences
Rankings
Ranking Based On Selection: 45
Mario Pandelaere
Metrics
H-Index
i10 Index
Citation Counts
35
59
5,958
Rankings
Ranking Based On Selection: 46
Adrian Rodriguez-Marek
Metrics
H-Index
i10 Index
Citation Counts
35
75
5,227
Geotechnical Engineering
Earthquake Engineering
engineering seismology
ground motions
seismic hazard analysis
Rankings
Ranking Based On Selection: 47
Brent Ledvina
Metrics
H-Index
i10 Index
Citation Counts
35
55
5,760
Navigation
GPS
ionospheric physics
scintillations
Rankings
Ranking Based On Selection: 48
Christopher Beattie
Metrics
H-Index
i10 Index
Citation Counts
35
61
4,773
Model reduction
Computational linear algebra
Numerical analysis
Scientific computing
VT Math
Rankings
Ranking Based On Selection: 49
W Cully Hession
Metrics
H-Index
i10 Index
Citation Counts
35
71
5,261
hydrology
sediment fate and transport
aquatic habitat
Rankings
Ranking Based On Selection: 50
Jonathan Boreyko
Metrics
H-Index
i10 Index
Citation Counts
34
58
6,193
Fluid Mechanics
Phase Change Heat Transfer
Biomimetics
Superhydrophobicity
Rankings
Ranking Based On Selection: 51
Elankumaran Subbiah
Metrics
H-Index
i10 Index
Citation Counts
34
55
5,820
Molecular Virology
Vaccines
Nanotherapeutics
Oncolytic viruses
Influenza
Rankings
Ranking Based On Selection: 52
Luke Achenie
Metrics
H-Index
i10 Index
Citation Counts
34
81
4,957
Computational Modeling
Data Science
Machine Learning
Optimization
Rankings
Ranking Based On Selection: 53
M David Alexander
Metrics
H-Index
i10 Index
Citation Counts
34
54
6,006
Rankings
Ranking Based On Selection: 54
Kirk Cameron
Metrics
H-Index
i10 Index
Citation Counts
34
78
5,221
Green Computing
High Performance Computing
Runtime Systems
Performance Modeling
Power-aware Computing
Rankings
Ranking Based On Selection: 55
Alan Wang 王刚
Metrics
H-Index
i10 Index
Citation Counts
33
57
6,115
Social Media Analytics
data mining
text mining
business intelligence
Gen-AI
Rankings
Ranking Based On Selection: 56
Leah R Johnson
Metrics
H-Index
i10 Index
Citation Counts
33
47
5,504
statistics
ecology
mathematical biology
physics
Rankings
Ranking Based On Selection: 57
Robert Broadwater
Metrics
H-Index
i10 Index
Citation Counts
33
81
4,681
Large Scale System Analysis
Graph Trace Analysis
Integrated System Modeling
Rankings
Ranking Based On Selection: 58
Tm Murali
Metrics
H-Index
i10 Index
Citation Counts
33
61
5,674
Computational systems biology
computationally-driven experimental biology
design and analysis of algorithms
Rankings
Ranking Based On Selection: 59
Matthew Holt
Metrics
H-Index
i10 Index
Citation Counts
33
55
5,055
agricultural and resource economics
applied econometrics
Rankings
Ranking Based On Selection: 60
Justin Lemkul
Metrics
H-Index
i10 Index
Citation Counts
32
47
7,409
Molecular modeling and simulation
polarizable force field development
CADD
Rankings
Ranking Based On Selection: 61
Jinsuo Zhang
Metrics
H-Index
i10 Index
Citation Counts
32
95
5,285
corrosion
nuclear materials
electrochemistry
molten salt
liquid metal
Rankings
Ranking Based On Selection: 62
Nicholas Mayhall
Metrics
H-Index
i10 Index
Citation Counts
32
55
8,243
Rankings
Ranking Based On Selection: 63
John A Richey
Metrics
H-Index
i10 Index
Citation Counts
32
46
5,707
Social Anxiety
Reward
Mindfulness
Neuroscience
Autism
Rankings
Ranking Based On Selection: 64
Willem G Odendaal
Metrics
H-Index
i10 Index
Citation Counts
32
53
4,627
power electronics
pulse power
electromagnetics
electronics packaging
Rankings
Ranking Based On Selection: 65
Dennis Kafura
Metrics
H-Index
i10 Index
Citation Counts
32
61
5,067
Rankings
Ranking Based On Selection: 66
Benjamin F Tracy
Metrics
H-Index
i10 Index
Citation Counts
31
50
5,736
Rankings
Ranking Based On Selection: 67
Virgilio Centeno
Metrics
H-Index
i10 Index
Citation Counts
31
57
5,220
Synchrophasors
Wide Area Measurement
Adpative Protection
Power Engineering Education
Rankings
Ranking Based On Selection: 68
Madlyn Frisard
Metrics
H-Index
i10 Index
Citation Counts
30
39
5,657
Rankings
Ranking Based On Selection: 69
James Tokuhisa
Metrics
H-Index
i10 Index
Citation Counts
30
37
5,366
Plant Chemical Defense
VT Biological Sciences
VT Translational Plant Sciences
Rankings
Ranking Based On Selection: 70
Kyoungho Ahn
Metrics
H-Index
i10 Index
Citation Counts
29
51
5,987
Rankings
Ranking Based On Selection: 71
Warren N Hardy
Metrics
H-Index
i10 Index
Citation Counts
29
50
5,116
Rankings
Ranking Based On Selection: 73
David Brunsma
Metrics
H-Index
i10 Index
Citation Counts
28
39
5,498
Race
Racism
Multiraciality
Identity
Human Rights
Rankings
Ranking Based On Selection: 74
Frank Quinn
Metrics
H-Index
i10 Index
Citation Counts
28
46
4,775
Rankings
Ranking Based On Selection: 75
Peter E Doolittle
Metrics
H-Index
i10 Index
Citation Counts
27
44
4,940
technology
constructivism
multimedia
social studies
teaching
Rankings
Ranking Based On Selection: 76
Roberta Russell
Metrics
H-Index
i10 Index
Citation Counts
27
37
5,712
Rankings
Ranking Based On Selection: 77
Andrea Kavanaugh
Metrics
H-Index
i10 Index
Citation Counts
27
58
4,690
HCI
social computing
social media
civic engagement
community computing
Rankings
Ranking Based On Selection: 78
Mark A Stremler
Metrics
H-Index
i10 Index
Citation Counts
26
49
4,948
Fluid Mechanics
Dynamical Systems
ICTAS Center for Engineered Health
Rankings
Ranking Based On Selection: 79
Cynthia E Devers
Metrics
H-Index
i10 Index
Citation Counts
24
29
5,882
Strategic Leadership Governance & Compensation
Gender
Social evaluations
Stigma
Reputation
Rankings
Ranking Based On Selection: 80
Vijay Singal
Metrics
H-Index
i10 Index
Citation Counts
23
32
5,463
Financial markets
market efficiency
indexing
short selling
seasonalities
Rankings
Ranking Based On Selection: 81
Janet Abbate
Metrics
H-Index
i10 Index
Citation Counts
20
30
5,413
Rankings
Ranking Based On Selection: 82
Gary L Long
Metrics
H-Index
i10 Index
Citation Counts
17
23
4,794
Analytical Chemistry and Chemistry Education