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 :9
Jill Maben
nursing workforce
staff well-being
care and compassion
single room hospital environment
Metrics
H-Index
i10 Index
Citation
53
115
9,566
* Rankings
Ranking Based On Selection :12
Mark Chambers
Veterinary bacteriology
vaccines
diagnostics
Metrics
H-Index
i10 Index
Citation
43
107
5,619
* Rankings
Ranking Based On Selection :13
Jonathan Johnston
Circadian Rhythms
Physiology
Metabolism
Endocrinology
Nutrition
Metrics
H-Index
i10 Index
Citation
41
55
4,870
* Rankings
Ranking Based On Selection :18
Malcolm Von Schantz
Chronobiology
Sleep
Global health
Photoreception
Human genetics
Metrics
H-Index
i10 Index
Citation
37
63
8,848
* Rankings
Ranking Based On Selection :19
Kourosh R Ahmadi
Nutritional Genomics
Genetic epidemiology
1-Carbon metabolism
Vitamin B12
Metrics
H-Index
i10 Index
Citation
35
55
8,820
* Rankings
Ranking Based On Selection :21
Rachel Simmonds
Buruli ulcer
mycolactone
molecular and cell biology
protein translocation
integrated stress
Metrics
H-Index
i10 Index
Citation
33
45
14,581
* Rankings
Ranking Based On Selection :22
Cath Taylor
Healthcare workforce organisation and wellbeing
Metrics
H-Index
i10 Index
Citation
32
59
6,545
* Rankings
Ranking Based On Selection :26
Kamalan Jeevaratnam
electrophysiology
cardiovascular
stem cell
pharmacology
Metrics
H-Index
i10 Index
Citation
28
74
2,640
* Rankings
Ranking Based On Selection :29
Kavitha Madhuri Thumuluru
Gynaecology
Gynaecologic Oncology
Robotics
Minimally Invasive Surgery
Metrics
H-Index
i10 Index
Citation
23
39
2,423
* Rankings
Ranking Based On Selection :30
Christina Jones
Allergy
Health Psychology
Low Intensity Psychological Interventions
Behaviour Change
Adherence
Metrics
H-Index
i10 Index
Citation
22
39
2,413
* Rankings
Ranking Based On Selection :33
Afrodita Marcu
Social and Health Psychology
Risk Perception and Communication
Online Health Information-Seeking
Cancer Early Diagnosis
Meso
Metrics
H-Index
i10 Index
Citation
20
24
1,839
* Rankings
Ranking Based On Selection :34
Jenny Harris
Mental health. Well being. Cancer. eHealth. Teamwork.
Metrics
H-Index
i10 Index
Citation
20
23
1,670
* Rankings
Ranking Based On Selection :36
Giovanni Lo Iacono
Mathematical Biology
epidemiology
fluid dynamics
turbulence
Metrics
H-Index
i10 Index
Citation
20
27
1,207
* Rankings
Ranking Based On Selection :39
Daniel Jackson
Health Economics
Health Economic modelling
Health technology appraisal
Systematic review
Real world evidence
Metrics
H-Index
i10 Index
Citation
17
20
1,461
* Rankings
Ranking Based On Selection :42
Carin Magnusson
nurse education
delegation
mentorship
governance
patient safety
Metrics
H-Index
i10 Index
Citation
13
15
755
* Rankings
Ranking Based On Selection :44
Lisa M Mohebati Nee Sacco
Nutrition
Early Years
Maternal-Infant Interactions
Maternal Perceptions
Parenting
Metrics
H-Index
i10 Index
Citation
12
14
2,185
* Rankings
Ranking Based On Selection :46
Ullrich Bartsch
Neuroscience
Sleep
Neuropsychiatry
AI
Brain Stimulation
Metrics
H-Index
i10 Index
Citation
10
10
631
Sharmini Julita Paramasivam|Sharmini Paramasivam
veterinary medicine
veterinary education
human animal interaction
animal behaviour
animal
Metrics
H-Index
i10 Index
Citation
9
8
224
Saskia L Wilson-Barnes
Nutrition
Public Health
Healthy Ageing
Vitamin D
Personalised Nutrition
Metrics
H-Index
i10 Index
Citation
8
8
265
Mandeep S. Bajwa
Head & Neck Surgery
Microvascular Reconstruction
Maxillofacial Surgery
Metrics
H-Index
i10 Index
Citation
8
8
283
Aloysius Kodjo Loglo|Aloysius Kodjo Dzigbordi Loglo
Immunology
Neglected Tropical Diseases
Reviews
Environmental enteric dysfunction
Metrics
H-Index
i10 Index
Citation
6
4
199
Musa Joya
Medical Physicist/Researcher/GATE&TOPAS MC code user/Teaching&Learning Fellow/Interested in Teaching
Metrics
H-Index
i10 Index
Citation
4
3
157
Rankings
Ranking Based On Selection: 1
Jane Ogden
Metrics
H-Index
i10 Index
Citation Counts
70
197
18,704
Rankings
Ranking Based On Selection: 3
John McVey
Metrics
H-Index
i10 Index
Citation Counts
57
131
10,644
Rankings
Ranking Based On Selection: 4
Roberto La Ragione
Metrics
H-Index
i10 Index
Citation Counts
56
171
10,759
Rankings
Ranking Based On Selection: 5
Johnjoe McFadden J McFadden JJ McFadden
Metrics
H-Index
i10 Index
Citation Counts
56
138
11,690
microbiology
systems biology
genetics
quantum biology
Rankings
Ranking Based On Selection: 6
Hardev Pandha
Metrics
H-Index
i10 Index
Citation Counts
55
152
11,350
Rankings
Ranking Based On Selection: 7
Chris Proudman
Metrics
H-Index
i10 Index
Citation Counts
55
107
8,071
Rankings
Ranking Based On Selection: 8
Emma Ream
Metrics
H-Index
i10 Index
Citation Counts
53
87
9,742
Rankings
Ranking Based On Selection: 9
Jill Maben
Metrics
H-Index
i10 Index
Citation Counts
53
115
9,566
nursing workforce
staff well-being
care and compassion
single room hospital environment
Rankings
Ranking Based On Selection: 10
Deborah Dunn Walters
Metrics
H-Index
i10 Index
Citation Counts
49
100
7,194
Rankings
Ranking Based On Selection: 11
Heather Gage
Metrics
H-Index
i10 Index
Citation Counts
46
139
9,891
Rankings
Ranking Based On Selection: 12
Mark Chambers
Metrics
H-Index
i10 Index
Citation Counts
43
107
5,619
Rankings
Ranking Based On Selection: 13
Jonathan Johnston
Metrics
H-Index
i10 Index
Citation Counts
41
55
4,870
Circadian Rhythms
Physiology
Metabolism
Endocrinology
Nutrition
Rankings
Ranking Based On Selection: 14
M Denise Robertson
Metrics
H-Index
i10 Index
Citation Counts
40
63
6,310
Rankings
Ranking Based On Selection: 15
David Blackbourn
Metrics
H-Index
i10 Index
Citation Counts
40
66
5,868
Rankings
Ranking Based On Selection: 16
Daniel L Horton
Metrics
H-Index
i10 Index
Citation Counts
38
73
4,866
Rankings
Ranking Based On Selection: 17
Simon RJ Taylor
Metrics
H-Index
i10 Index
Citation Counts
38
75
4,442
Rankings
Ranking Based On Selection: 18
Malcolm Von Schantz
Metrics
H-Index
i10 Index
Citation Counts
37
63
8,848
Chronobiology
Sleep
Global health
Photoreception
Human genetics
Rankings
Ranking Based On Selection: 19
Kourosh R Ahmadi
Metrics
H-Index
i10 Index
Citation Counts
35
55
8,820
Nutritional Genomics
Genetic epidemiology
1-Carbon metabolism
Vitamin B12
Rankings
Ranking Based On Selection: 20
Bertram Opitz
Metrics
H-Index
i10 Index
Citation Counts
35
54
5,881
Rankings
Ranking Based On Selection: 21
Rachel Simmonds
Metrics
H-Index
i10 Index
Citation Counts
33
45
14,581
Buruli ulcer
mycolactone
molecular and cell biology
protein translocation
integrated stress
Rankings
Ranking Based On Selection: 22
Cath Taylor
Metrics
H-Index
i10 Index
Citation Counts
32
59
6,545
Rankings
Ranking Based On Selection: 23
Jennifer Mary Ritchie
Metrics
H-Index
i10 Index
Citation Counts
32
43
3,922
Rankings
Ranking Based On Selection: 24
Elizabeth Barley
Metrics
H-Index
i10 Index
Citation Counts
30
46
5,400
Rankings
Ranking Based On Selection: 25
Kathryn Hart
Metrics
H-Index
i10 Index
Citation Counts
29
58
4,802
Rankings
Ranking Based On Selection: 26
Kamalan Jeevaratnam
Metrics
H-Index
i10 Index
Citation Counts
28
74
2,640
electrophysiology
cardiovascular
stem cell
pharmacology
Rankings
Ranking Based On Selection: 27
Jorge Gutierrez Merino
Metrics
H-Index
i10 Index
Citation Counts
26
42
3,856
Probiotics
Antimicrobials
Immuno-modulation
Microbiome
Rankings
Ranking Based On Selection: 28
Jane Hendy
Metrics
H-Index
i10 Index
Citation Counts
25
39
4,209
Rankings
Ranking Based On Selection: 29
Kavitha Madhuri Thumuluru
Metrics
H-Index
i10 Index
Citation Counts
23
39
2,423
Gynaecology
Gynaecologic Oncology
Robotics
Minimally Invasive Surgery
Rankings
Ranking Based On Selection: 30
Christina Jones
Metrics
H-Index
i10 Index
Citation Counts
22
39
2,413
Allergy
Health Psychology
Low Intensity Psychological Interventions
Behaviour Change
Adherence
Rankings
Ranking Based On Selection: 31
Suzanne Hingley Wilson
Metrics
H-Index
i10 Index
Citation Counts
22
28
3,187
Tuberculosis
AMR
Biofilms
Intracellular Infection
Rankings
Ranking Based On Selection: 32
Katherine Pond
Metrics
H-Index
i10 Index
Citation Counts
22
38
2,739
Rankings
Ranking Based On Selection: 33
Afrodita Marcu
Metrics
H-Index
i10 Index
Citation Counts
20
24
1,839
Social and Health Psychology
Risk Perception and Communication
Online Health Information-Seeking
Cancer Early Diagnosis
Meso
Rankings
Ranking Based On Selection: 34
Jenny Harris
Metrics
H-Index
i10 Index
Citation Counts
20
23
1,670
Mental health. Well being. Cancer. eHealth. Teamwork.
Rankings
Ranking Based On Selection: 35
Bridget Dibb
Metrics
H-Index
i10 Index
Citation Counts
20
27
1,812
Rankings
Ranking Based On Selection: 36
Giovanni Lo Iacono
Metrics
H-Index
i10 Index
Citation Counts
20
27
1,207
Mathematical Biology
epidemiology
fluid dynamics
turbulence
Rankings
Ranking Based On Selection: 37
Natalie E Riddell
Metrics
H-Index
i10 Index
Citation Counts
19
20
3,071
Rankings
Ranking Based On Selection: 39
Daniel Jackson
Metrics
H-Index
i10 Index
Citation Counts
17
20
1,461
Health Economics
Health Economic modelling
Health technology appraisal
Systematic review
Real world evidence
Rankings
Ranking Based On Selection: 40
Rebecca Lewis
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,164
Rankings
Ranking Based On Selection: 41
Alexander Stewart
Metrics
H-Index
i10 Index
Citation Counts
15
18
637
Rankings
Ranking Based On Selection: 42
Carin Magnusson
Metrics
H-Index
i10 Index
Citation Counts
13
15
755
nurse education
delegation
mentorship
governance
patient safety
Rankings
Ranking Based On Selection: 43
Abdulaziz Alanazi
Metrics
H-Index
i10 Index
Citation Counts
12
14
366
Rankings
Ranking Based On Selection: 44
Lisa M Mohebati Nee Sacco
Metrics
H-Index
i10 Index
Citation Counts
12
14
2,185
Nutrition
Early Years
Maternal-Infant Interactions
Maternal Perceptions
Parenting
Rankings
Ranking Based On Selection: 45
Anand Ahankari
Metrics
H-Index
i10 Index
Citation Counts
11
13
675
Rankings
Ranking Based On Selection: 46
Ullrich Bartsch
Metrics
H-Index
i10 Index
Citation Counts
10
10
631
Neuroscience
Sleep
Neuropsychiatry
AI
Brain Stimulation
Rankings
Ranking Based On Selection: 47
Aurore C Poirier
Metrics
H-Index
i10 Index
Citation Counts
9
8
446
Rankings
Ranking Based On Selection: 48
Sharmini Julita Paramasivam|Sharmini Paramasivam
Metrics
H-Index
i10 Index
Citation Counts
9
8
224
veterinary medicine
veterinary education
human animal interaction
animal behaviour
animal
Rankings
Ranking Based On Selection: 49
Saskia L Wilson-Barnes
Metrics
H-Index
i10 Index
Citation Counts
8
8
265
Nutrition
Public Health
Healthy Ageing
Vitamin D
Personalised Nutrition
Rankings
Ranking Based On Selection: 50
Mandeep S. Bajwa
Metrics
H-Index
i10 Index
Citation Counts
8
8
283
Head & Neck Surgery
Microvascular Reconstruction
Maxillofacial Surgery
Rankings
Ranking Based On Selection: 51
Aloysius Kodjo Loglo|Aloysius Kodjo Dzigbordi Loglo
Metrics
H-Index
i10 Index
Citation Counts
6
4
199
Immunology
Neglected Tropical Diseases
Reviews
Environmental enteric dysfunction
Rankings
Ranking Based On Selection: 52
Christina Uwins
Metrics
H-Index
i10 Index
Citation Counts
6
4
178
Rankings
Ranking Based On Selection: 53
Christina Sadler
Metrics
H-Index
i10 Index
Citation Counts
4
4
244
Rankings
Ranking Based On Selection: 54
Musa Joya
Metrics
H-Index
i10 Index
Citation Counts
4
3
157
Medical Physicist/Researcher/GATE&TOPAS MC code user/Teaching&Learning Fellow/Interested in Teaching
Rankings
Ranking Based On Selection: 55
Sarhad Alnajjar
Metrics
H-Index
i10 Index
Citation Counts
4
3
128
Rankings
Ranking Based On Selection: 56
Rebecca Vearing
Metrics
H-Index
i10 Index
Citation Counts
4
3
92
Rankings
Ranking Based On Selection: 57
Ian Ackerley
Metrics
H-Index
i10 Index
Citation Counts
4
1
36
Medical Physics
PET imaging
CT imaging
Deep Learning
Rankings
Ranking Based On Selection: 58
Guldane Damla Kaya
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
midwifery
midwifery education
cultural diversity
patient safety