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" (870,053 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
Alan Carr
Clinical Psychology
Family Therapy
Positive Psychology
Child Protection
Metrics
H-Index
i10 Index
Citation
60
197
18,401
* Rankings
Ranking Based On Selection: 3
Suzanne Guerin
Applied psychology
Research methods
Health services evaluation
Metrics
H-Index
i10 Index
Citation
44
122
5,972
* Rankings
Ranking Based On Selection: 4
Barbara Dooley
Psychology
youth mental health
intervention studies
Metrics
H-Index
i10 Index
Citation
37
69
5,542
* Rankings
Ranking Based On Selection: 6
Eilis Hennessy
Health related stigma in childhood and adolescence
youth mental health
Innovative research methods
child care and development
Metrics
H-Index
i10 Index
Citation
33
53
4,917
* Rankings
Ranking Based On Selection: 7
Geertje Schuitema
Environmental Psychology
Sustainable Consumer Behaviour
Metrics
H-Index
i10 Index
Citation
29
43
4,824
* Rankings
Ranking Based On Selection: 8
Michael O Connell
Social Psychology
economic psychology
personality
Metrics
H-Index
i10 Index
Citation
27
48
2,213
* Rankings
Ranking Based On Selection: 9
Ciara M Greene
Psychology
Cognitive Neuroscience
Metrics
H-Index
i10 Index
Citation
26
41
2,214

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
James Matthews
Physical activity
Health Behaviour Change
Mental Health Promotion in Sport
Organisational Sport Psychology
Metrics
H-Index
i10 Index
Citation
23
34
1,779
* Rankings
Ranking Based On Selection: 13
Brendan Rooney
Cognitive and emotional engagement with online spaces
media technology and entertainment
Research design
methods and analysis
Metrics
H-Index
i10 Index
Citation
22
32
1,525
* Rankings
Ranking Based On Selection: 14
Barbara Coughlan
Psychological Well-being
Bereavement
Pregnancy Loss
Perinatal Death
Coping with Chronic Illness.
Metrics
H-Index
i10 Index
Citation
22
33
1,647
* Rankings
Ranking Based On Selection: 15
Nuala Brady
Psychology
Neuroscience
Cognition
Perception
Metrics
H-Index
i10 Index
Citation
20
32
2,259
* Rankings
Ranking Based On Selection: 17
Paul D'Alton
Psycho-oncology
Mindfulness-Based Interventions
Palliative Care
Metrics
H-Index
i10 Index
Citation
13
16
449
* Rankings
Ranking Based On Selection: 18
Ciarán Benson
cultural psychology of self
psychology of art
cultural policy
art criticism
Irish psychology
Metrics
H-Index
i10 Index
Citation
12
15
1,508
* Rankings
Ranking Based On Selection: 19
Clodagh Cogley
Psychology
healthcare
neuropsychology
patient-centred care
ESKD
Metrics
H-Index
i10 Index
Citation
10
10
240
* Rankings
Ranking Based On Selection: 20
Ciarán Mc Mahon
psychology
cyberpsychology
social media
information security
Metrics
H-Index
i10 Index
Citation
8
6
185
Annette Clancy
Psychoanalysis
leadership
organisation studies
emotion
experiential learning
Metrics
H-Index
i10 Index
Citation
6
5
207
Elaine Wilson
psycho-oncology
social work education
social work practice education
field work education
Metrics
H-Index
i10 Index
Citation
5
4
133
Geraldine Boland
social inclusion
disability
accessibility
bereavement
Metrics
H-Index
i10 Index
Citation
5
4
51
Elisha Minihan
Psychology
Mental health
Occupational Stress
Wellbeing
Metrics
H-Index
i10 Index
Citation
5
3
306
Mary Ivers
Cancer Survivorship
Health Psychology
Transformative Education
Building Confidence
Medical Education
Metrics
H-Index
i10 Index
Citation
3
1
31
Rankings
Ranking Based On Selection: 1
Alan Carr
Metrics
H-Index
i10 Index
Citation Counts
60
197
18,401
Clinical Psychology
Family Therapy
Positive Psychology
Child Protection
Rankings
Ranking Based On Selection: 2
Simon Kelly
Metrics
H-Index
i10 Index
Citation Counts
51
80
11,129
Rankings
Ranking Based On Selection: 3
Suzanne Guerin
Metrics
H-Index
i10 Index
Citation Counts
44
122
5,972
Applied psychology
Research methods
Health services evaluation
Rankings
Ranking Based On Selection: 4
Barbara Dooley
Metrics
H-Index
i10 Index
Citation Counts
37
69
5,542
Psychology
youth mental health
intervention studies
Rankings
Ranking Based On Selection: 5
Jessica Bramham
Metrics
H-Index
i10 Index
Citation Counts
35
63
5,666
Rankings
Ranking Based On Selection: 6
Eilis Hennessy
Metrics
H-Index
i10 Index
Citation Counts
33
53
4,917
Health related stigma in childhood and adolescence
youth mental health
Innovative research methods
child care and development
Rankings
Ranking Based On Selection: 7
Geertje Schuitema
Metrics
H-Index
i10 Index
Citation Counts
29
43
4,824
Environmental Psychology
Sustainable Consumer Behaviour
Rankings
Ranking Based On Selection: 8
Michael O Connell
Metrics
H-Index
i10 Index
Citation Counts
27
48
2,213
Social Psychology
economic psychology
personality
Rankings
Ranking Based On Selection: 9
Ciara M Greene
Metrics
H-Index
i10 Index
Citation Counts
26
41
2,214
Rankings
Ranking Based On Selection: 10
Cliodhna O Connor
Metrics
H-Index
i10 Index
Citation Counts
24
43
5,415

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
James Matthews
Metrics
H-Index
i10 Index
Citation Counts
23
34
1,779
Physical activity
Health Behaviour Change
Mental Health Promotion in Sport
Organisational Sport Psychology
Rankings
Ranking Based On Selection: 12
John Mcevoy
Metrics
H-Index
i10 Index
Citation Counts
23
38
1,495
Rankings
Ranking Based On Selection: 13
Brendan Rooney
Metrics
H-Index
i10 Index
Citation Counts
22
32
1,525
Cognitive and emotional engagement with online spaces
media technology and entertainment
Research design
methods and analysis
Rankings
Ranking Based On Selection: 14
Barbara Coughlan
Metrics
H-Index
i10 Index
Citation Counts
22
33
1,647
Psychological Well-being
Bereavement
Pregnancy Loss
Perinatal Death
Coping with Chronic Illness.
Rankings
Ranking Based On Selection: 15
Nuala Brady
Metrics
H-Index
i10 Index
Citation Counts
20
32
2,259
Psychology
Neuroscience
Cognition
Perception
Rankings
Ranking Based On Selection: 16
Geraldine Moane
Metrics
H-Index
i10 Index
Citation Counts
18
27
3,629
Rankings
Ranking Based On Selection: 17
Paul D'Alton
Metrics
H-Index
i10 Index
Citation Counts
13
16
449
Psycho-oncology
Mindfulness-Based Interventions
Palliative Care
Rankings
Ranking Based On Selection: 18
Ciarán Benson
Metrics
H-Index
i10 Index
Citation Counts
12
15
1,508
cultural psychology of self
psychology of art
cultural policy
art criticism
Irish psychology
Rankings
Ranking Based On Selection: 19
Clodagh Cogley
Metrics
H-Index
i10 Index
Citation Counts
10
10
240
Psychology
healthcare
neuropsychology
patient-centred care
ESKD
Rankings
Ranking Based On Selection: 20
Ciarán Mc Mahon
Metrics
H-Index
i10 Index
Citation Counts
8
6
185
psychology
cyberpsychology
social media
information security
Rankings
Ranking Based On Selection: 21
Sarah Cooney
Metrics
H-Index
i10 Index
Citation Counts
7
6
133
Rankings
Ranking Based On Selection: 22
Annette Clancy
Metrics
H-Index
i10 Index
Citation Counts
6
5
207
Psychoanalysis
leadership
organisation studies
emotion
experiential learning
Rankings
Ranking Based On Selection: 23
Elaine Wilson
Metrics
H-Index
i10 Index
Citation Counts
5
4
133
psycho-oncology
social work education
social work practice education
field work education
Rankings
Ranking Based On Selection: 24
Geraldine Boland
Metrics
H-Index
i10 Index
Citation Counts
5
4
51
social inclusion
disability
accessibility
bereavement
Rankings
Ranking Based On Selection: 25
Elisha Minihan
Metrics
H-Index
i10 Index
Citation Counts
5
3
306
Psychology
Mental health
Occupational Stress
Wellbeing
Rankings
Ranking Based On Selection: 26
Mary Ivers
Metrics
H-Index
i10 Index
Citation Counts
3
1
31
Cancer Survivorship
Health Psychology
Transformative Education
Building Confidence
Medical Education