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" (873,937 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
Linda Richter
child development
adolescent development
HIV
AIDS
public health
Metrics
H-Index
i10 Index
Citation
88
344
44,061
* Rankings
Ranking Based On Selection :2
Charles Feldman
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
Metrics
H-Index
i10 Index
Citation
73
267
18,852
* Rankings
Ranking Based On Selection :5
Yahya E. Choonara
Targeted Drug Delivery
Nanomedicines
Stimuli-Responsive Biomaterials
Molecular Pharma-Engineered Regenerative Medicines
Drug
Metrics
H-Index
i10 Index
Citation
60
246
15,036
* Rankings
Ranking Based On Selection :6
Duncan Mitchell
Conservation physiology
thermal physiology
pain physiology
fever physiology
sleep physiology
Metrics
H-Index
i10 Index
Citation
59
216
12,618
* Rankings
Ranking Based On Selection :7
Ugo Ripamonti
tissue regeneration
bone induction
hydroxyapatites
self-induction
Metrics
H-Index
i10 Index
Citation
57
120
9,718
* Rankings
Ranking Based On Selection :9
Sally Archibald
Savanna ecology
global change
fire ecology
vegetation dynamics
earth-system feedbacks
Metrics
H-Index
i10 Index
Citation
53
94
14,345
* Rankings
Ranking Based On Selection :11
Mark A. Collinson
Health and Demographic Surveillance Systems (HDSS)
Population Health
Migration
Urbanisation and Health
longitudinal analytic
Metrics
H-Index
i10 Index
Citation
49
112
8,271
* Rankings
Ranking Based On Selection :18
Ryan G. Wagner
mental & neurological health
epidemiology
Africa
longitudinal research methodology
health
Metrics
H-Index
i10 Index
Citation
39
90
5,371
* Rankings
Ranking Based On Selection :19
Sergio Carmona
COVID19
diagnostics
HIV drug resistance
HIV epidemiology
Public Health
Metrics
H-Index
i10 Index
Citation
38
71
4,274
* Rankings
Ranking Based On Selection :21
Derk Brouwer
exposure assessment
risk assessment
dermal exposure
nano safety ...
Metrics
H-Index
i10 Index
Citation
38
80
5,304
* Rankings
Ranking Based On Selection :27
Dean Brady
Biotechnology
Green Chemistry
Biocatalysis
Biochemistry
Metrics
H-Index
i10 Index
Citation
33
59
5,516
* Rankings
Ranking Based On Selection :30
Eustasius Musenge
Epidemiology
Public Health
Biostatistics
Spatial and Temporal Modelling
Statistics
Metrics
H-Index
i10 Index
Citation
32
55
2,330
* Rankings
Ranking Based On Selection :34
Jo Vearey
migration and health
public health
southern Africa
global migration and health governance sex work
Metrics
H-Index
i10 Index
Citation
30
60
2,787
* Rankings
Ranking Based On Selection :42
Ernest Tambo
Global health equity
Evidence policies
Implementation science
Digital transfromation
Resilience
Metrics
H-Index
i10 Index
Citation
28
60
2,574
* Rankings
Ranking Based On Selection :45
Lisa Ware
cardiovascular disease
nutrition
physical activity
health psychology
HIV
Metrics
H-Index
i10 Index
Citation
26
58
2,060
* Rankings
Ranking Based On Selection :46
Katijah Khoza-Shangase
Preventive Audiology in the African context (contextual relevance and responsiveness) with a focus in Ototoxicity
Early Hearing
Metrics
H-Index
i10 Index
Citation
26
83
2,370
* Rankings
Ranking Based On Selection :50
Kennedy Erlwanger
Developmental programming. Non-conventional feeds and phytomedicine.
Metrics
H-Index
i10 Index
Citation
24
61
2,365
* Rankings
Ranking Based On Selection :54
Jennifer Watermeyer
health communication
intercultural health communication
speech pathology
audiology
Metrics
H-Index
i10 Index
Citation
23
44
1,866
* Rankings
Ranking Based On Selection :57
Amadi Ogonda Ihunwo
Neuroscience
Comparative Adult neurogenesis
Anatomical variations Anatomical education
Metrics
H-Index
i10 Index
Citation
23
44
1,712
* Rankings
Ranking Based On Selection :59
Yasien Sayed
Protein Biochemistry
Biophysics
Structural Biology
Computational Biology
Metrics
H-Index
i10 Index
Citation
23
39
1,433
* Rankings
Ranking Based On Selection :61
June Fabian
Epidemiology
population health
nephrology
non-communicable diseases
Metrics
H-Index
i10 Index
Citation
21
47
1,918
* Rankings
Ranking Based On Selection :62
Thashree Marimuthu
Molecular Engineering of Precision Systems
Metal Coordinated Pharmaceuticals
Metrics
H-Index
i10 Index
Citation
21
33
1,528
* Rankings
Ranking Based On Selection :70
Vincent Gray
Genomics
Bioinformatics
Entomopathogenic nematodes
retrotransposons
Metrics
H-Index
i10 Index
Citation
19
30
1,686
* Rankings
Ranking Based On Selection :73
Judith Bruce
Nurse education - programme design and evaluation. Clinical interest in trauma and emergency care
Metrics
H-Index
i10 Index
Citation
18
25
991
* Rankings
Ranking Based On Selection :78
Alison B Feeley
Obesity
chronic diseases
dietary patterns
adolescents
food security
Metrics
H-Index
i10 Index
Citation
17
20
909
* Rankings
Ranking Based On Selection :79
Francesca Parrini
animal ecology
behavioural ecology
large mammals
wildlife conservation
Metrics
H-Index
i10 Index
Citation
17
26
865
* Rankings
Ranking Based On Selection :86
Deirdre Kruger
pancreatic cancer
biomarkers
endothelial dysfunction
vascular disease
surgery
Metrics
H-Index
i10 Index
Citation
15
18
878
* Rankings
Ranking Based On Selection :92
Pascaline Fonteh Fru
Drug discovery and delivery
Pancreatic Diseases
Clinical immunometabolites
Metrics
H-Index
i10 Index
Citation
13
16
652
* Rankings
Ranking Based On Selection :93
Sylvia Fanucchi
Biochemistry
Proteins
transcription factors
structural biology
Metrics
H-Index
i10 Index
Citation
13
17
476
* Rankings
Ranking Based On Selection :95
Daphney Nozizwe Conco
Public Health
Qualitative Research Methodology
Gender
Sexual and Reproductive Health and Rights
Metrics
H-Index
i10 Index
Citation
13
13
496
* Rankings
Ranking Based On Selection :97
Kelsey L. Glennon
Speciation
polyploidy
plant diversification
population genetics
Metrics
H-Index
i10 Index
Citation
12
13
774
Rankings
Ranking Based On Selection: 1
Linda Richter
Metrics
H-Index
i10 Index
Citation Counts
88
344
44,061
child development
adolescent development
HIV
AIDS
public health
Rankings
Ranking Based On Selection: 2
Charles Feldman
Metrics
H-Index
i10 Index
Citation Counts
73
267
18,852
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
Rankings
Ranking Based On Selection: 3
Maureen Coetzee
Metrics
H-Index
i10 Index
Citation Counts
72
185
20,487
Rankings
Ranking Based On Selection: 4
Stephen Tollman
Metrics
H-Index
i10 Index
Citation Counts
61
131
13,576
Rankings
Ranking Based On Selection: 5
Yahya E. Choonara
Metrics
H-Index
i10 Index
Citation Counts
60
246
15,036
Targeted Drug Delivery
Nanomedicines
Stimuli-Responsive Biomaterials
Molecular Pharma-Engineered Regenerative Medicines
Drug
Rankings
Ranking Based On Selection: 6
Duncan Mitchell
Metrics
H-Index
i10 Index
Citation Counts
59
216
12,618
Conservation physiology
thermal physiology
pain physiology
fever physiology
sleep physiology
Rankings
Ranking Based On Selection: 7
Ugo Ripamonti
Metrics
H-Index
i10 Index
Citation Counts
57
120
9,718
tissue regeneration
bone induction
hydroxyapatites
self-induction
Rankings
Ranking Based On Selection: 8
Lisa Du Toit
Metrics
H-Index
i10 Index
Citation Counts
54
163
11,584
Rankings
Ranking Based On Selection: 9
Sally Archibald
Metrics
H-Index
i10 Index
Citation Counts
53
94
14,345
Savanna ecology
global change
fire ecology
vegetation dynamics
earth-system feedbacks
Rankings
Ranking Based On Selection: 10
Kathleen Kahn
Metrics
H-Index
i10 Index
Citation Counts
53
87
8,702
Rankings
Ranking Based On Selection: 11
Mark A. Collinson
Metrics
H-Index
i10 Index
Citation Counts
49
112
8,271
Health and Demographic Surveillance Systems (HDSS)
Population Health
Migration
Urbanisation and Health
longitudinal analytic
Rankings
Ranking Based On Selection: 12
Michelle Groome
Metrics
H-Index
i10 Index
Citation Counts
48
93
12,149
Rankings
Ranking Based On Selection: 13
Saraladevi Naicker
Metrics
H-Index
i10 Index
Citation Counts
46
94
17,693
Rankings
Ranking Based On Selection: 14
Himla Soodyall
Metrics
H-Index
i10 Index
Citation Counts
44
76
8,750
Rankings
Ranking Based On Selection: 15
Andrea Fuller
Metrics
H-Index
i10 Index
Citation Counts
42
116
5,856
Wildlife Conservation Physiology
Thermal Biology
Rankings
Ranking Based On Selection: 16
Mohammed Tikly
Metrics
H-Index
i10 Index
Citation Counts
41
105
8,082
Rankings
Ranking Based On Selection: 17
Aijaz Ahmad
Metrics
H-Index
i10 Index
Citation Counts
40
82
6,373
Rankings
Ranking Based On Selection: 18
Ryan G. Wagner
Metrics
H-Index
i10 Index
Citation Counts
39
90
5,371
mental & neurological health
epidemiology
Africa
longitudinal research methodology
health
Rankings
Ranking Based On Selection: 19
Sergio Carmona
Metrics
H-Index
i10 Index
Citation Counts
38
71
4,274
COVID19
diagnostics
HIV drug resistance
HIV epidemiology
Public Health
Rankings
Ranking Based On Selection: 20
Adriano Duse
Metrics
H-Index
i10 Index
Citation Counts
38
58
10,294
Rankings
Ranking Based On Selection: 21
Derk Brouwer
Metrics
H-Index
i10 Index
Citation Counts
38
80
5,304
exposure assessment
risk assessment
dermal exposure
nano safety ...
Rankings
Ranking Based On Selection: 22
Willie Daniels
Metrics
H-Index
i10 Index
Citation Counts
38
80
5,426
Rankings
Ranking Based On Selection: 23
Florette Treurnicht
Metrics
H-Index
i10 Index
Citation Counts
37
81
11,551
Rankings
Ranking Based On Selection: 24
Amanda Krause
Metrics
H-Index
i10 Index
Citation Counts
35
85
5,487
Rankings
Ranking Based On Selection: 25
Claire Penn
Metrics
H-Index
i10 Index
Citation Counts
35
99
3,645
Rankings
Ranking Based On Selection: 26
Robyn S Hetem
Metrics
H-Index
i10 Index
Citation Counts
33
66
3,560
Rankings
Ranking Based On Selection: 27
Dean Brady
Metrics
H-Index
i10 Index
Citation Counts
33
59
5,516
Biotechnology
Green Chemistry
Biocatalysis
Biochemistry
Rankings
Ranking Based On Selection: 28
Aimee Stewart
Metrics
H-Index
i10 Index
Citation Counts
33
65
3,347
Rankings
Ranking Based On Selection: 30
Eustasius Musenge
Metrics
H-Index
i10 Index
Citation Counts
32
55
2,330
Epidemiology
Public Health
Biostatistics
Spatial and Temporal Modelling
Statistics
Rankings
Ranking Based On Selection: 31
Maria Papathanasopoulos
Metrics
H-Index
i10 Index
Citation Counts
32
58
2,966
Rankings
Ranking Based On Selection: 32
Karl-Gunter Technau
Metrics
H-Index
i10 Index
Citation Counts
31
57
2,550
Rankings
Ranking Based On Selection: 33
Kevin Balkwill
Metrics
H-Index
i10 Index
Citation Counts
31
74
4,160
Rankings
Ranking Based On Selection: 34
Jo Vearey
Metrics
H-Index
i10 Index
Citation Counts
30
60
2,787
migration and health
public health
southern Africa
global migration and health governance sex work
Rankings
Ranking Based On Selection: 35
Daynia Ballot
Metrics
H-Index
i10 Index
Citation Counts
30
62
3,284
Rankings
Ranking Based On Selection: 36
Jean Botha
Metrics
H-Index
i10 Index
Citation Counts
30
54
4,611
Rankings
Ranking Based On Selection: 37
Pierre P. D Kondiah
Metrics
H-Index
i10 Index
Citation Counts
29
50
3,082
European Patents Holder
CEO: 4D Supramolecular Tissue Engineering
Rankings
Ranking Based On Selection: 38
Martin Veller
Metrics
H-Index
i10 Index
Citation Counts
29
56
6,030
Rankings
Ranking Based On Selection: 39
Patricios J
Metrics
H-Index
i10 Index
Citation Counts
28
65
9,276
Rankings
Ranking Based On Selection: 40
Joel M. Francis|Joel Msafiri Francis, Joel Francis
Metrics
H-Index
i10 Index
Citation Counts
28
44
3,874
Epidemiology
Alcohol Use
Mental Health
HIV
Noncommunicable Diseases
Rankings
Ranking Based On Selection: 41
Gaurav Kwatra
Metrics
H-Index
i10 Index
Citation Counts
28
41
11,706
Rankings
Ranking Based On Selection: 42
Ernest Tambo
Metrics
H-Index
i10 Index
Citation Counts
28
60
2,574
Global health equity
Evidence policies
Implementation science
Digital transfromation
Resilience
Rankings
Ranking Based On Selection: 43
Franco Guidozzi
Metrics
H-Index
i10 Index
Citation Counts
28
54
2,290
Rankings
Ranking Based On Selection: 44
Kurt Sartorius
Metrics
H-Index
i10 Index
Citation Counts
27
47
2,680
Rankings
Ranking Based On Selection: 45
Lisa Ware
Metrics
H-Index
i10 Index
Citation Counts
26
58
2,060
cardiovascular disease
nutrition
physical activity
health psychology
HIV
Rankings
Ranking Based On Selection: 46
Katijah Khoza-Shangase
Metrics
H-Index
i10 Index
Citation Counts
26
83
2,370
Preventive Audiology in the African context (contextual relevance and responsiveness) with a focus in Ototoxicity
Early Hearing
Rankings
Ranking Based On Selection: 47
Gill Nelson
Metrics
H-Index
i10 Index
Citation Counts
26
41
2,036
Rankings
Ranking Based On Selection: 48
Pieter De Maayer
Metrics
H-Index
i10 Index
Citation Counts
25
33
2,624
Rankings
Ranking Based On Selection: 49
Trevor Carmichael
Metrics
H-Index
i10 Index
Citation Counts
25
37
3,039
Rankings
Ranking Based On Selection: 50
Kennedy Erlwanger
Metrics
H-Index
i10 Index
Citation Counts
24
61
2,365
Developmental programming. Non-conventional feeds and phytomedicine.
Rankings
Ranking Based On Selection: 51
Susan Williams
Metrics
H-Index
i10 Index
Citation Counts
23
33
5,007
Rankings
Ranking Based On Selection: 52
Johanna Maree
Metrics
H-Index
i10 Index
Citation Counts
23
52
1,618
Rankings
Ranking Based On Selection: 53
Mike Wells
Metrics
H-Index
i10 Index
Citation Counts
23
44
2,361
Rankings
Ranking Based On Selection: 54
Jennifer Watermeyer
Metrics
H-Index
i10 Index
Citation Counts
23
44
1,866
health communication
intercultural health communication
speech pathology
audiology
Rankings
Ranking Based On Selection: 55
Zane Lombard
Metrics
H-Index
i10 Index
Citation Counts
23
35
2,000
Rankings
Ranking Based On Selection: 56
Karl Rumbold
Metrics
H-Index
i10 Index
Citation Counts
23
33
2,074
Rankings
Ranking Based On Selection: 57
Amadi Ogonda Ihunwo
Metrics
H-Index
i10 Index
Citation Counts
23
44
1,712
Neuroscience
Comparative Adult neurogenesis
Anatomical variations Anatomical education
Rankings
Ranking Based On Selection: 58
Karen Milner
Metrics
H-Index
i10 Index
Citation Counts
23
35
2,904
Rankings
Ranking Based On Selection: 59
Yasien Sayed
Metrics
H-Index
i10 Index
Citation Counts
23
39
1,433
Protein Biochemistry
Biophysics
Structural Biology
Computational Biology
Rankings
Ranking Based On Selection: 60
Abdu A Adamu
Metrics
H-Index
i10 Index
Citation Counts
22
34
49,923
Rankings
Ranking Based On Selection: 61
June Fabian
Metrics
H-Index
i10 Index
Citation Counts
21
47
1,918
Epidemiology
population health
nephrology
non-communicable diseases
Rankings
Ranking Based On Selection: 62
Thashree Marimuthu
Metrics
H-Index
i10 Index
Citation Counts
21
33
1,528
Molecular Engineering of Precision Systems
Metal Coordinated Pharmaceuticals
Rankings
Ranking Based On Selection: 63
Frances D Duncan
Metrics
H-Index
i10 Index
Citation Counts
21
35
994
Rankings
Ranking Based On Selection: 64
Aviva Tugendhaft
Metrics
H-Index
i10 Index
Citation Counts
20
29
1,714
Rankings
Ranking Based On Selection: 65
R Brooksbank
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,289
Rankings
Ranking Based On Selection: 66
Edna N Bosire
Metrics
H-Index
i10 Index
Citation Counts
19
27
874
Health Systems
HIV/AIDS
NCDs
Adolescent Health Africa
Rankings
Ranking Based On Selection: 67
Benita Olivier
Metrics
H-Index
i10 Index
Citation Counts
19
36
1,597
Rankings
Ranking Based On Selection: 70
Vincent Gray
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,686
Genomics
Bioinformatics
Entomopathogenic nematodes
retrotransposons
Rankings
Ranking Based On Selection: 71
Armorel Van Eyk
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,232
Rankings
Ranking Based On Selection: 72
Ágnes Erzse
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,083
Rankings
Ranking Based On Selection: 73
Judith Bruce
Metrics
H-Index
i10 Index
Citation Counts
18
25
991
Nurse education - programme design and evaluation. Clinical interest in trauma and emergency care
Rankings
Ranking Based On Selection: 74
Karine Scheuermaier
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,463
Rankings
Ranking Based On Selection: 75
Xavier Glaudas
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,095
Rankings
Ranking Based On Selection: 77
Lorena Núñez Carrasco
Metrics
H-Index
i10 Index
Citation Counts
18
22
976
Health
Migration
Reproductive Health
Death Studies
Religion
Rankings
Ranking Based On Selection: 78
Alison B Feeley
Metrics
H-Index
i10 Index
Citation Counts
17
20
909
Obesity
chronic diseases
dietary patterns
adolescents
food security
Rankings
Ranking Based On Selection: 79
Francesca Parrini
Metrics
H-Index
i10 Index
Citation Counts
17
26
865
animal ecology
behavioural ecology
large mammals
wildlife conservation
Rankings
Ranking Based On Selection: 80
Jude Igumbor
Metrics
H-Index
i10 Index
Citation Counts
17
25
858
Rankings
Ranking Based On Selection: 81
Lara Nicole Goldstein
Metrics
H-Index
i10 Index
Citation Counts
16
29
979
Rankings
Ranking Based On Selection: 82
Joanne Potterton
Metrics
H-Index
i10 Index
Citation Counts
16
24
1,179
Rankings
Ranking Based On Selection: 83
Stella Iacovides
Metrics
H-Index
i10 Index
Citation Counts
16
17
2,039
Rankings
Ranking Based On Selection: 84
Antonia Wadley
Metrics
H-Index
i10 Index
Citation Counts
16
21
734
Rankings
Ranking Based On Selection: 85
Stuart A. Ali
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,263
Rankings
Ranking Based On Selection: 86
Deirdre Kruger
Metrics
H-Index
i10 Index
Citation Counts
15
18
878
pancreatic cancer
biomarkers
endothelial dysfunction
vascular disease
surgery
Rankings
Ranking Based On Selection: 87
Susan Goldstein
Metrics
H-Index
i10 Index
Citation Counts
15
27
1,369
Rankings
Ranking Based On Selection: 88
Hennie Lombaard
Metrics
H-Index
i10 Index
Citation Counts
15
21
1,042
Rankings
Ranking Based On Selection: 89
David Anderson
Metrics
H-Index
i10 Index
Citation Counts
14
15
530
Rankings
Ranking Based On Selection: 90
Warrick Mckinon
Metrics
H-Index
i10 Index
Citation Counts
14
21
898
Rankings
Ranking Based On Selection: 91
Heleen Van Aswegen
Metrics
H-Index
i10 Index
Citation Counts
14
20
1,034
Rankings
Ranking Based On Selection: 92
Pascaline Fonteh Fru
Metrics
H-Index
i10 Index
Citation Counts
13
16
652
Drug discovery and delivery
Pancreatic Diseases
Clinical immunometabolites
Rankings
Ranking Based On Selection: 93
Sylvia Fanucchi
Metrics
H-Index
i10 Index
Citation Counts
13
17
476
Biochemistry
Proteins
transcription factors
structural biology
Rankings
Ranking Based On Selection: 94
Busisiwe C. Maseko
Metrics
H-Index
i10 Index
Citation Counts
13
14
631
Rankings
Ranking Based On Selection: 95
Daphney Nozizwe Conco
Metrics
H-Index
i10 Index
Citation Counts
13
13
496
Public Health
Qualitative Research Methodology
Gender
Sexual and Reproductive Health and Rights
Rankings
Ranking Based On Selection: 96
Heila Jordaan
Metrics
H-Index
i10 Index
Citation Counts
13
13
562
Rankings
Ranking Based On Selection: 97
Kelsey L. Glennon
Metrics
H-Index
i10 Index
Citation Counts
12
13
774
Speciation
polyploidy
plant diversification
population genetics
Rankings
Ranking Based On Selection: 98
Joanne Neille
Metrics
H-Index
i10 Index
Citation Counts
12
13
437
Disability studies
rural studies
early childhood intervention
Rankings
Ranking Based On Selection: 100
Jason Hemingway
Metrics
H-Index
i10 Index
Citation Counts
12
13
472
Primate craniofacial biology
Comparative anatomy