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
Sophie Witter
International Health Financing and Health Systems
Metrics
H-Index
i10 Index
Citation
56
140
13,623
* Rankings
Ranking Based On Selection :3
Tom Mercer
exercise
physical activity
rehabilitation
physiology
renal
Metrics
H-Index
i10 Index
Citation
42
82
5,415
* Rankings
Ranking Based On Selection :7
Chris McVittie
Social psychology
discourse
conversation
qualitative methods
Metrics
H-Index
i10 Index
Citation
29
50
2,893
* Rankings
Ranking Based On Selection :8
Karina Kielmann
tuberculosis
HIV
medical anthropology
health systems research
Metrics
H-Index
i10 Index
Citation
27
50
2,196
* Rankings
Ranking Based On Selection :10
Fiona O May
Human resource management
alcohol brief interventions
Metrics
H-Index
i10 Index
Citation
25
43
1,997
* Rankings
Ranking Based On Selection :12
Pelagia Koufaki
Clinical Exercise Physiology
Exercise Rehabilitation
Physical Activity
Cardiovascular Health
Physical Fitness
Metrics
H-Index
i10 Index
Citation
22
32
2,353
* Rankings
Ranking Based On Selection :13
Claire Seaman
Family Business
Business Families
Innovation
Entrepreneurship
Enterprise
Metrics
H-Index
i10 Index
Citation
22
38
1,649
* Rankings
Ranking Based On Selection :14
Donald maciver
Occupational therapy
peadiatrics
inclusion
participation
Metrics
H-Index
i10 Index
Citation
18
28
1,442
* Rankings
Ranking Based On Selection :15
Rebecca Finkel
critical event studies
festivals
gender
cultural identity
Metrics
H-Index
i10 Index
Citation
18
30
1,232
* Rankings
Ranking Based On Selection :16
Marion Rutherford
Autism
prosody
diagnosis
interventions
Metrics
H-Index
i10 Index
Citation
15
19
1,901
* Rankings
Ranking Based On Selection :18
Iddo Oberski
Teaching
Learning
Assessment
Mindfulness
Contemplative practices
Metrics
H-Index
i10 Index
Citation
15
18
754
* Rankings
Ranking Based On Selection :19
Marcia Vera Espinoza
Migration
Refugee studies
Governance
Development
Social Connections
Metrics
H-Index
i10 Index
Citation
14
20
674
* Rankings
Ranking Based On Selection :21
O Sagan
critical psychology
phenomenology
narrative
mental wellbeing & resilience
Metrics
H-Index
i10 Index
Citation
13
18
610
* Rankings
Ranking Based On Selection :23
Paul I Kadetz
Global Health and Development
Medical Anthropology
Health Humanities
Antimicrobial Resistance
Climate Change
Metrics
H-Index
i10 Index
Citation
12
17
535
* Rankings
Ranking Based On Selection :24
Margaret Coulter Smith
Osteoporosis
Critical Care Nursing
Complex Interventions
Multi-Methods & QualitativeResearch
Professional Education
Metrics
H-Index
i10 Index
Citation
12
16
10,499
* Rankings
Ranking Based On Selection :26
Liz Ross
hearing loss
hearing impairment
acquired hearing loss
NHS audiology policy
employment and hearing loss
Metrics
H-Index
i10 Index
Citation
10
10
2,803
* Rankings
Ranking Based On Selection :27
Lucas Néstor Sempé
health finance
evaluation
inequality
older people
human development
Metrics
H-Index
i10 Index
Citation
9
9
242
Lauren Smith
information literacy
critical pedagogy
widening participation
critical librarianship
Metrics
H-Index
i10 Index
Citation
8
8
373
Anusua Singh Roy
Statistical modelling
Survival analysis
Bayesian Statistics
Machine Learning
Design of
Metrics
H-Index
i10 Index
Citation
7
7
189
Ana Tominc
Food media&comms
cookbooks&lifestyle
early food TV
populism
nationalism
Metrics
H-Index
i10 Index
Citation
7
5
196
Stefania Paladini
Data Science
Space sector
Innovation
Non Traditional Security
Sustainability
Metrics
H-Index
i10 Index
Citation
7
5
177
Kamelia Chaichi
Hospitality
Tourism
Human resource
Business
Marketing
Metrics
H-Index
i10 Index
Citation
6
6
164
Eleanor Curnow
occupational therapy
participation
Metrics
H-Index
i10 Index
Citation
6
3
132
Ian Finlayson
Psycholinguistics
Production
Comprehension
Dialogue
Anaphora
Metrics
H-Index
i10 Index
Citation
6
5
365
Zeina Jamal|Zeina M. Jamal, Z Jamal
public health
humanitarian crises
refugee health
social determinants of health
health systems
Metrics
H-Index
i10 Index
Citation
6
4
176
Margaret Hills De Zarate
ethnography
Arts Therapies
Italian
Spanish and Latin American studies
Metrics
H-Index
i10 Index
Citation
6
2
78
Cara Blaisdell
early childhood education and care
listening to young children
young children's rights
Metrics
H-Index
i10 Index
Citation
5
5
185
Vaibhav Tyagi
Creativity
Risk taking
Decision making
Numbers
Metrics
H-Index
i10 Index
Citation
5
4
216
Dominique Glatt
dietetics
nutrition
vitamin D
musculoskeletal
cancer survivorship
Metrics
H-Index
i10 Index
Citation
4
4
170
Cornelia Heyde
Linguistics
Speech Sciences
Articulation
Ultrasound
Stuttering
Metrics
H-Index
i10 Index
Citation
4
3
178
Nicky Haire
Music therapy
arts-based research
music therapy with persons living with dementia
improvisation
Metrics
H-Index
i10 Index
Citation
3
3
60
Kristen K Knowles
social perception
political psychology
social cognition
experimental psychology
Metrics
H-Index
i10 Index
Citation
3
2
164
Myrto Dounavi
physiotherapy
rehabilitation
physical Activity
exercise
electrotherapy
Metrics
H-Index
i10 Index
Citation
2
2
55
Stephen C Scholes
Education Policy
History of Education
Curriculum
Inspection
Religious Education
Metrics
H-Index
i10 Index
Citation
2
0
12
Thomas Peschken-Holt
International Marketing
Marketing Strategy
Information Processing
Decision Making
Metrics
H-Index
i10 Index
Citation
2
1
44
Vanessa Lee
Theatre Studies
Caribbean Studies
Gender
Postcolonialism
Film Studies
Metrics
H-Index
i10 Index
Citation
2
0
13
Rankings
Ranking Based On Selection: 1
Sophie Witter
Metrics
H-Index
i10 Index
Citation Counts
56
140
13,623
International Health Financing and Health Systems
Rankings
Ranking Based On Selection: 2
Alastair Ager
Metrics
H-Index
i10 Index
Citation Counts
55
145
14,035
Rankings
Ranking Based On Selection: 3
Tom Mercer
Metrics
H-Index
i10 Index
Citation Counts
42
82
5,415
exercise
physical activity
rehabilitation
physiology
renal
Rankings
Ranking Based On Selection: 4
James M Scobbie
Metrics
H-Index
i10 Index
Citation Counts
40
87
4,948
Rankings
Ranking Based On Selection: 5
Jan Dewing
Metrics
H-Index
i10 Index
Citation Counts
33
76
6,355
Rankings
Ranking Based On Selection: 6
Marietta Van Der Linden
Metrics
H-Index
i10 Index
Citation Counts
33
58
3,631
Rankings
Ranking Based On Selection: 7
Chris McVittie
Metrics
H-Index
i10 Index
Citation Counts
29
50
2,893
Social psychology
discourse
conversation
qualitative methods
Rankings
Ranking Based On Selection: 8
Karina Kielmann
Metrics
H-Index
i10 Index
Citation Counts
27
50
2,196
tuberculosis
HIV
medical anthropology
health systems research
Rankings
Ranking Based On Selection: 9
Stephen Darling
Metrics
H-Index
i10 Index
Citation Counts
27
35
2,228
Rankings
Ranking Based On Selection: 10
Fiona O May
Metrics
H-Index
i10 Index
Citation Counts
25
43
1,997
Human resource management
alcohol brief interventions
Rankings
Ranking Based On Selection: 11
Pol De Vos
Metrics
H-Index
i10 Index
Citation Counts
23
45
1,943
Rankings
Ranking Based On Selection: 12
Pelagia Koufaki
Metrics
H-Index
i10 Index
Citation Counts
22
32
2,353
Clinical Exercise Physiology
Exercise Rehabilitation
Physical Activity
Cardiovascular Health
Physical Fitness
Rankings
Ranking Based On Selection: 13
Claire Seaman
Metrics
H-Index
i10 Index
Citation Counts
22
38
1,649
Family Business
Business Families
Innovation
Entrepreneurship
Enterprise
Rankings
Ranking Based On Selection: 14
Donald maciver
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,442
Occupational therapy
peadiatrics
inclusion
participation
Rankings
Ranking Based On Selection: 15
Rebecca Finkel
Metrics
H-Index
i10 Index
Citation Counts
18
30
1,232
critical event studies
festivals
gender
cultural identity
Rankings
Ranking Based On Selection: 16
Marion Rutherford
Metrics
H-Index
i10 Index
Citation Counts
15
19
1,901
Autism
prosody
diagnosis
interventions
Rankings
Ranking Based On Selection: 17
Felix Schaeffler
Metrics
H-Index
i10 Index
Citation Counts
15
20
928
Rankings
Ranking Based On Selection: 18
Iddo Oberski
Metrics
H-Index
i10 Index
Citation Counts
15
18
754
Teaching
Learning
Assessment
Mindfulness
Contemplative practices
Rankings
Ranking Based On Selection: 19
Marcia Vera Espinoza
Metrics
H-Index
i10 Index
Citation Counts
14
20
674
Migration
Refugee studies
Governance
Development
Social Connections
Rankings
Ranking Based On Selection: 20
Julien Lonchamp
Metrics
H-Index
i10 Index
Citation Counts
13
14
653
Rankings
Ranking Based On Selection: 21
O Sagan
Metrics
H-Index
i10 Index
Citation Counts
13
18
610
critical psychology
phenomenology
narrative
mental wellbeing & resilience
Rankings
Ranking Based On Selection: 22
Giorgos Tsiris
Metrics
H-Index
i10 Index
Citation Counts
13
18
566
Rankings
Ranking Based On Selection: 23
Paul I Kadetz
Metrics
H-Index
i10 Index
Citation Counts
12
17
535
Global Health and Development
Medical Anthropology
Health Humanities
Antimicrobial Resistance
Climate Change
Rankings
Ranking Based On Selection: 24
Margaret Coulter Smith
Metrics
H-Index
i10 Index
Citation Counts
12
16
10,499
Osteoporosis
Critical Care Nursing
Complex Interventions
Multi-Methods & QualitativeResearch
Professional Education
Rankings
Ranking Based On Selection: 25
David Stevenson
Metrics
H-Index
i10 Index
Citation Counts
10
10
422
Rankings
Ranking Based On Selection: 26
Liz Ross
Metrics
H-Index
i10 Index
Citation Counts
10
10
2,803
hearing loss
hearing impairment
acquired hearing loss
NHS audiology policy
employment and hearing loss
Rankings
Ranking Based On Selection: 27
Lucas Néstor Sempé
Metrics
H-Index
i10 Index
Citation Counts
9
9
242
health finance
evaluation
inequality
older people
human development
Rankings
Ranking Based On Selection: 28
Michelle Elliot
Metrics
H-Index
i10 Index
Citation Counts
9
9
230
Rankings
Ranking Based On Selection: 29
Stefanie Van De Peer
Metrics
H-Index
i10 Index
Citation Counts
9
8
283
Film
Middle East
women
documentaries
Rankings
Ranking Based On Selection: 30
Gail Carin Levy
Metrics
H-Index
i10 Index
Citation Counts
8
8
589
Rankings
Ranking Based On Selection: 31
Lauren Smith
Metrics
H-Index
i10 Index
Citation Counts
8
8
373
information literacy
critical pedagogy
widening participation
critical librarianship
Rankings
Ranking Based On Selection: 32
Emma Wood
Metrics
H-Index
i10 Index
Citation Counts
8
7
245
Rankings
Ranking Based On Selection: 33
Anusua Singh Roy
Metrics
H-Index
i10 Index
Citation Counts
7
7
189
Statistical modelling
Survival analysis
Bayesian Statistics
Machine Learning
Design of
Rankings
Ranking Based On Selection: 34
Giulia Loffreda
Metrics
H-Index
i10 Index
Citation Counts
7
5
231
Rankings
Ranking Based On Selection: 35
Ana Tominc
Metrics
H-Index
i10 Index
Citation Counts
7
5
196
Food media&comms
cookbooks&lifestyle
early food TV
populism
nationalism
Rankings
Ranking Based On Selection: 36
Stefania Paladini
Metrics
H-Index
i10 Index
Citation Counts
7
5
177
Data Science
Space sector
Innovation
Non Traditional Security
Sustainability
Rankings
Ranking Based On Selection: 37
Kamelia Chaichi
Metrics
H-Index
i10 Index
Citation Counts
6
6
164
Hospitality
Tourism
Human resource
Business
Marketing
Rankings
Ranking Based On Selection: 38
Eleanor Curnow
Metrics
H-Index
i10 Index
Citation Counts
6
3
132
occupational therapy
participation
Rankings
Ranking Based On Selection: 39
Ian Finlayson
Metrics
H-Index
i10 Index
Citation Counts
6
5
365
Psycholinguistics
Production
Comprehension
Dialogue
Anaphora
Rankings
Ranking Based On Selection: 40
Zeina Jamal|Zeina M. Jamal, Z Jamal
Metrics
H-Index
i10 Index
Citation Counts
6
4
176
public health
humanitarian crises
refugee health
social determinants of health
health systems
Rankings
Ranking Based On Selection: 41
Margaret Hills De Zarate
Metrics
H-Index
i10 Index
Citation Counts
6
2
78
ethnography
Arts Therapies
Italian
Spanish and Latin American studies
Rankings
Ranking Based On Selection: 42
Cara Blaisdell
Metrics
H-Index
i10 Index
Citation Counts
5
5
185
early childhood education and care
listening to young children
young children's rights
Rankings
Ranking Based On Selection: 43
Vaibhav Tyagi
Metrics
H-Index
i10 Index
Citation Counts
5
4
216
Creativity
Risk taking
Decision making
Numbers
Rankings
Ranking Based On Selection: 44
Dominique Glatt
Metrics
H-Index
i10 Index
Citation Counts
4
4
170
dietetics
nutrition
vitamin D
musculoskeletal
cancer survivorship
Rankings
Ranking Based On Selection: 45
Cornelia Heyde
Metrics
H-Index
i10 Index
Citation Counts
4
3
178
Linguistics
Speech Sciences
Articulation
Ultrasound
Stuttering
Rankings
Ranking Based On Selection: 46
Susan Lloyd
Metrics
H-Index
i10 Index
Citation Counts
4
2
118
Rankings
Ranking Based On Selection: 47
Stephen Jannetts
Metrics
H-Index
i10 Index
Citation Counts
4
2
149
Rankings
Ranking Based On Selection: 48
Nicky Haire
Metrics
H-Index
i10 Index
Citation Counts
3
3
60
Music therapy
arts-based research
music therapy with persons living with dementia
improvisation
Rankings
Ranking Based On Selection: 49
Kristen K Knowles
Metrics
H-Index
i10 Index
Citation Counts
3
2
164
social perception
political psychology
social cognition
experimental psychology
Rankings
Ranking Based On Selection: 50
Nazia Pathan
Metrics
H-Index
i10 Index
Citation Counts
3
0
19
Machine Learning
Data Science
Medical Data Analysis
Rankings
Ranking Based On Selection: 51
Myrto Dounavi
Metrics
H-Index
i10 Index
Citation Counts
2
2
55
physiotherapy
rehabilitation
physical Activity
exercise
electrotherapy
Rankings
Ranking Based On Selection: 52
Suzie Dick
Metrics
H-Index
i10 Index
Citation Counts
2
1
15
Rankings
Ranking Based On Selection: 53
Stephen C Scholes
Metrics
H-Index
i10 Index
Citation Counts
2
0
12
Education Policy
History of Education
Curriculum
Inspection
Religious Education
Rankings
Ranking Based On Selection: 54
Thomas Peschken-Holt
Metrics
H-Index
i10 Index
Citation Counts
2
1
44
International Marketing
Marketing Strategy
Information Processing
Decision Making
Rankings
Ranking Based On Selection: 55
Vanessa Lee
Metrics
H-Index
i10 Index
Citation Counts
2
0
13
Theatre Studies
Caribbean Studies
Gender
Postcolonialism
Film Studies
Rankings
Ranking Based On Selection: 56
Linnea Wallen
Metrics
H-Index
i10 Index
Citation Counts
1
0
9