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 :2
Arnstein Mykletun
Psychiatry
occupational mental health
epidemiology
psychology
functional somatic syndromes
Metrics
H-Index
i10 Index
Citation
88
180
28,957
* Rankings
Ranking Based On Selection :4
Jan Alexander
Environmental Medicine
Toxicology
Food Safety
Nutrition
Metrics
H-Index
i10 Index
Citation
85
328
23,484
* Rankings
Ranking Based On Selection :8
Børge Sivertsen
Sleep
behavioral medicine
psychosomatic medicine & health psychology
Metrics
H-Index
i10 Index
Citation
75
212
20,758
* Rankings
Ranking Based On Selection :12
Anne Lise Brantsæter
Nutrition
Epidemiology
sustainable diets
healthy eating
diet throughout the life course
Metrics
H-Index
i10 Index
Citation
66
150
12,793
* Rankings
Ranking Based On Selection :16
Anders Skrondal
Statistical Modeling
Longitudinal Data Analysis
Psychometrics
Multilevel Modelling
Medical Statistics
Metrics
H-Index
i10 Index
Citation
61
90
29,143
* Rankings
Ranking Based On Selection :19
Hein Stigum
Causal graphs
Stata
Flexible Parametric Survival Modelss
Metrics
H-Index
i10 Index
Citation
57
125
10,207
* Rankings
Ranking Based On Selection :23
Eivind Ystrom
Genetics
Substance use
Personality
Twin studies
Metrics
H-Index
i10 Index
Citation
50
138
8,355
* Rankings
Ranking Based On Selection :24
J. Frederik Frøen
Public Health
Global Health
Reproductive Health
Stillbirths
Metrics
H-Index
i10 Index
Citation
49
89
14,719
* Rankings
Ranking Based On Selection :25
Kari Furu
pharmacoepidemiology
drug utilization
epidemiology
drug safety
Metrics
H-Index
i10 Index
Citation
49
116
8,579
* Rankings
Ranking Based On Selection :27
Jørgen G. Bramness
drugs of abuse
addiction
psychiatry
epidemiology
pharmacology
Metrics
H-Index
i10 Index
Citation
47
157
7,693
* Rankings
Ranking Based On Selection :30
Jens Christoffer Skogen
epidemiology
public health
mental disorders
alcohol
social media & digital health
Metrics
H-Index
i10 Index
Citation
44
104
16,116
* Rankings
Ranking Based On Selection :31
Eleni Papadopoulou
Nutrition
Environmental epidemiology
Birth cohorts
Early life determinants of disease
Childhood obesity
Metrics
H-Index
i10 Index
Citation
42
66
5,827
* Rankings
Ranking Based On Selection :33
Astanand Jugessur
genetics
birth defects
perinatal epidemiology
epidemiology
Metrics
H-Index
i10 Index
Citation
37
56
9,954
* Rankings
Ranking Based On Selection :34
Tim Hofer
toxicology
reproduction/development
cancer
neurodegeneration
aging
Metrics
H-Index
i10 Index
Citation
37
47
7,769
* Rankings
Ranking Based On Selection :39
Astri Syse
Social inequality in health
aging
health
family demography
Metrics
H-Index
i10 Index
Citation
35
59
3,705
* Rankings
Ranking Based On Selection :40
Elisabeth Oiestad
Forensic toxicology
bioanalysis
analytical chemistry
liquid chromatography tandem mass spectrometry
Metrics
H-Index
i10 Index
Citation
34
77
3,513
* Rankings
Ranking Based On Selection :42
Guido Biele
Statistical and cognitive modeling
Bayesian modeling
causal inference
psychology
epidemiology
Metrics
H-Index
i10 Index
Citation
32
52
5,553
* Rankings
Ranking Based On Selection :45
Kristin Holvik
Epidemiology
Osteoporosis
Hip fractures
Nutrition
Vitamin D
Metrics
H-Index
i10 Index
Citation
31
56
2,946
* Rankings
Ranking Based On Selection :46
Brit Oppedal
Refugee mental health
Acculturation and child development
Ethnic identity
Intervention and Evaluation
Public health
Metrics
H-Index
i10 Index
Citation
31
44
4,185
* Rankings
Ranking Based On Selection :49
Rune Becher
Lung toxicology
indoor air pollution
phthalates
mycotoxins. Dental materials
Metrics
H-Index
i10 Index
Citation
31
54
2,916
* Rankings
Ranking Based On Selection :50
Vegard Eldholm
Population genomics of infectious disease
tuberculosis
antimicrobial resistance
Metrics
H-Index
i10 Index
Citation
30
41
4,096
* Rankings
Ranking Based On Selection :54
Hubert Dirven
Toxicology
Metabolism
Hazard assessment
risk assessment
microbiome
Metrics
H-Index
i10 Index
Citation
28
50
2,740
* Rankings
Ranking Based On Selection :55
Anette Kocbach Bølling
Toxicology
Environmental chemicals
Particulate matter
Dental materials
Tobacco additives
Metrics
H-Index
i10 Index
Citation
27
40
3,115
* Rankings
Ranking Based On Selection :58
Álvaro Hernáez
Nutrition
physical activity
cardiovascular disease
Mendelian randomization
Metrics
H-Index
i10 Index
Citation
26
37
2,773
* Rankings
Ranking Based On Selection :60
German Tapia
immune mediated diseases
infections
molecular biology
environmental factors
genetics
Metrics
H-Index
i10 Index
Citation
26
48
2,462
* Rankings
Ranking Based On Selection :64
Nina Iszatt
Environmental epidemiology
child health
gut microbiome
metabolic disorders
Metrics
H-Index
i10 Index
Citation
25
34
3,119
* Rankings
Ranking Based On Selection :71
Gro Dehli Villanger|Gro Dehli Villanger, Gro Andersen
public health
ecotoxicology
environmental epidemiolgy
endocrine disruption
neurodevelopment
Metrics
H-Index
i10 Index
Citation
23
35
1,731
* Rankings
Ranking Based On Selection :72
Chris Rose
statistics
RCTs
infection control
health technology assessment
medical imaging
Metrics
H-Index
i10 Index
Citation
23
37
5,148
* Rankings
Ranking Based On Selection :76
Ingunn Olea Lund
health psychology
psychiatric epidemiology
mental health
substance use
family studies
Metrics
H-Index
i10 Index
Citation
22
37
1,490
* Rankings
Ranking Based On Selection :80
Ashley Elizabeth Muller
systematic reviews
substance use disorder
quality of life
exercise
Metrics
H-Index
i10 Index
Citation
21
29
2,141
* Rankings
Ranking Based On Selection :82
Jennifer L Dembinski
Virology
immunology
gene therapy
mesenchymal stem cells
cancer stem cells
Metrics
H-Index
i10 Index
Citation
21
31
7,368
* Rankings
Ranking Based On Selection :85
Line C. Gjerde
Personality disorders
common mental disorders
sick leave
behavior genetics
Metrics
H-Index
i10 Index
Citation
20
28
1,229
* Rankings
Ranking Based On Selection :87
Sören Abel
microbiology
infectious diseases
bacterial cell biology
population dynamics
antimicrobial resistance
Metrics
H-Index
i10 Index
Citation
19
23
3,491
* Rankings
Ranking Based On Selection :88
Marit Knapstad
public mental health
work and mental health
epidemiology
depression
evaluation research
Metrics
H-Index
i10 Index
Citation
19
26
1,379
* Rankings
Ranking Based On Selection :89
Katrine Mari Owe
kvinnehelse
reproduktiv epidemiologi
fysisk aktivitet
statistikk
Metrics
H-Index
i10 Index
Citation
19
23
2,231
Rankings
Ranking Based On Selection: 1
Per Magnus
Metrics
H-Index
i10 Index
Citation Counts
109
446
43,923
Rankings
Ranking Based On Selection: 2
Arnstein Mykletun
Metrics
H-Index
i10 Index
Citation Counts
88
180
28,957
Psychiatry
occupational mental health
epidemiology
psychology
functional somatic syndromes
Rankings
Ranking Based On Selection: 3
Peter Gill
Metrics
H-Index
i10 Index
Citation Counts
86
205
27,166
Rankings
Ranking Based On Selection: 4
Jan Alexander
Metrics
H-Index
i10 Index
Citation Counts
85
328
23,484
Environmental Medicine
Toxicology
Food Safety
Nutrition
Rankings
Ranking Based On Selection: 5
Dominique Caugant
Metrics
H-Index
i10 Index
Citation Counts
84
274
31,714
Rankings
Ranking Based On Selection: 6
Simon Lewin
Metrics
H-Index
i10 Index
Citation Counts
83
185
56,454
Rankings
Ranking Based On Selection: 8
Børge Sivertsen
Metrics
H-Index
i10 Index
Citation Counts
75
212
20,758
Sleep
behavioral medicine
psychosomatic medicine & health psychology
Rankings
Ranking Based On Selection: 9
Helle Margrete Meltzer
Metrics
H-Index
i10 Index
Citation Counts
75
189
16,928
Rankings
Ranking Based On Selection: 10
Jennifer R. Harris
Metrics
H-Index
i10 Index
Citation Counts
72
167
20,784
Rankings
Ranking Based On Selection: 11
Aage Tverdal
Metrics
H-Index
i10 Index
Citation Counts
71
165
35,991
Rankings
Ranking Based On Selection: 12
Anne Lise Brantsæter
Metrics
H-Index
i10 Index
Citation Counts
66
150
12,793
Nutrition
Epidemiology
sustainable diets
healthy eating
diet throughout the life course
Rankings
Ranking Based On Selection: 14
Merete Eggesbø
Metrics
H-Index
i10 Index
Citation Counts
63
93
14,437
Rankings
Ranking Based On Selection: 15
Haug LS
Metrics
H-Index
i10 Index
Citation Counts
62
121
12,372
Rankings
Ranking Based On Selection: 16
Anders Skrondal
Metrics
H-Index
i10 Index
Citation Counts
61
90
29,143
Statistical Modeling
Longitudinal Data Analysis
Psychometrics
Multilevel Modelling
Medical Statistics
Rankings
Ranking Based On Selection: 18
Siri Eldevik Håberg
Metrics
H-Index
i10 Index
Citation Counts
59
140
12,957
Rankings
Ranking Based On Selection: 19
Hein Stigum
Metrics
H-Index
i10 Index
Citation Counts
57
125
10,207
Rankings
Ranking Based On Selection: 20
Lars Stene
Metrics
H-Index
i10 Index
Citation Counts
57
123
11,576
Rankings
Ranking Based On Selection: 22
Gunnar Brunborg
Metrics
H-Index
i10 Index
Citation Counts
54
127
10,351
Rankings
Ranking Based On Selection: 23
Eivind Ystrom
Metrics
H-Index
i10 Index
Citation Counts
50
138
8,355
Genetics
Substance use
Personality
Twin studies
Rankings
Ranking Based On Selection: 24
J. Frederik Frøen
Metrics
H-Index
i10 Index
Citation Counts
49
89
14,719
Public Health
Global Health
Reproductive Health
Stillbirths
Rankings
Ranking Based On Selection: 25
Kari Furu
Metrics
H-Index
i10 Index
Citation Counts
49
116
8,579
pharmacoepidemiology
drug utilization
epidemiology
drug safety
Rankings
Ranking Based On Selection: 26
Bjørn Heine Strand
Metrics
H-Index
i10 Index
Citation Counts
47
123
10,207
Rankings
Ranking Based On Selection: 27
Jørgen G. Bramness
Metrics
H-Index
i10 Index
Citation Counts
47
157
7,693
drugs of abuse
addiction
psychiatry
epidemiology
pharmacology
Rankings
Ranking Based On Selection: 28
Anne Johanne Søgaard
Metrics
H-Index
i10 Index
Citation Counts
47
108
7,969
Rankings
Ranking Based On Selection: 30
Jens Christoffer Skogen
Metrics
H-Index
i10 Index
Citation Counts
44
104
16,116
epidemiology
public health
mental disorders
alcohol
social media & digital health
Rankings
Ranking Based On Selection: 31
Eleni Papadopoulou
Metrics
H-Index
i10 Index
Citation Counts
42
66
5,827
Nutrition
Environmental epidemiology
Birth cohorts
Early life determinants of disease
Childhood obesity
Rankings
Ranking Based On Selection: 32
Ronny Myhre
Metrics
H-Index
i10 Index
Citation Counts
37
49
10,190
Rankings
Ranking Based On Selection: 33
Astanand Jugessur
Metrics
H-Index
i10 Index
Citation Counts
37
56
9,954
genetics
birth defects
perinatal epidemiology
epidemiology
Rankings
Ranking Based On Selection: 34
Tim Hofer
Metrics
H-Index
i10 Index
Citation Counts
37
47
7,769
toxicology
reproduction/development
cancer
neurodegeneration
aging
Rankings
Ranking Based On Selection: 35
Ketil Stordal
Metrics
H-Index
i10 Index
Citation Counts
36
83
4,755
Rankings
Ranking Based On Selection: 38
Johan Øvrevik
Metrics
H-Index
i10 Index
Citation Counts
35
68
4,725
Rankings
Ranking Based On Selection: 39
Astri Syse
Metrics
H-Index
i10 Index
Citation Counts
35
59
3,705
Social inequality in health
aging
health
family demography
Rankings
Ranking Based On Selection: 40
Elisabeth Oiestad
Metrics
H-Index
i10 Index
Citation Counts
34
77
3,513
Forensic toxicology
bioanalysis
analytical chemistry
liquid chromatography tandem mass spectrometry
Rankings
Ranking Based On Selection: 42
Guido Biele
Metrics
H-Index
i10 Index
Citation Counts
32
52
5,553
Statistical and cognitive modeling
Bayesian modeling
causal inference
psychology
epidemiology
Rankings
Ranking Based On Selection: 43
Øystein Karlstad
Metrics
H-Index
i10 Index
Citation Counts
31
55
3,345
Rankings
Ranking Based On Selection: 44
Martin Tesli
Metrics
H-Index
i10 Index
Citation Counts
31
55
2,577
Rankings
Ranking Based On Selection: 45
Kristin Holvik
Metrics
H-Index
i10 Index
Citation Counts
31
56
2,946
Epidemiology
Osteoporosis
Hip fractures
Nutrition
Vitamin D
Rankings
Ranking Based On Selection: 46
Brit Oppedal
Metrics
H-Index
i10 Index
Citation Counts
31
44
4,185
Refugee mental health
Acculturation and child development
Ethnic identity
Intervention and Evaluation
Public health
Rankings
Ranking Based On Selection: 47
Bo Engdahl
Metrics
H-Index
i10 Index
Citation Counts
31
70
3,650
Rankings
Ranking Based On Selection: 48
Siri Mjaaland
Metrics
H-Index
i10 Index
Citation Counts
31
61
3,142
Rankings
Ranking Based On Selection: 49
Rune Becher
Metrics
H-Index
i10 Index
Citation Counts
31
54
2,916
Lung toxicology
indoor air pollution
phthalates
mycotoxins. Dental materials
Rankings
Ranking Based On Selection: 50
Vegard Eldholm
Metrics
H-Index
i10 Index
Citation Counts
30
41
4,096
Population genomics of infectious disease
tuberculosis
antimicrobial resistance
Rankings
Ranking Based On Selection: 53
Geir Smedslund
Metrics
H-Index
i10 Index
Citation Counts
29
48
5,248
Rankings
Ranking Based On Selection: 54
Hubert Dirven
Metrics
H-Index
i10 Index
Citation Counts
28
50
2,740
Toxicology
Metabolism
Hazard assessment
risk assessment
microbiome
Rankings
Ranking Based On Selection: 55
Anette Kocbach Bølling
Metrics
H-Index
i10 Index
Citation Counts
27
40
3,115
Toxicology
Environmental chemicals
Particulate matter
Dental materials
Tobacco additives
Rankings
Ranking Based On Selection: 57
Karl Erik Lund
Metrics
H-Index
i10 Index
Citation Counts
27
59
2,279
Rankings
Ranking Based On Selection: 58
Álvaro Hernáez
Metrics
H-Index
i10 Index
Citation Counts
26
37
2,773
Nutrition
physical activity
cardiovascular disease
Mendelian randomization
Rankings
Ranking Based On Selection: 59
Geir Scott Brunborg
Metrics
H-Index
i10 Index
Citation Counts
26
42
6,877
Rankings
Ranking Based On Selection: 60
German Tapia
Metrics
H-Index
i10 Index
Citation Counts
26
48
2,462
immune mediated diseases
infections
molecular biology
environmental factors
genetics
Rankings
Ranking Based On Selection: 63
Jose Francisco Meneses Echavez
Metrics
H-Index
i10 Index
Citation Counts
25
47
3,321
Rankings
Ranking Based On Selection: 64
Nina Iszatt
Metrics
H-Index
i10 Index
Citation Counts
25
34
3,119
Environmental epidemiology
child health
gut microbiome
metabolic disorders
Rankings
Ranking Based On Selection: 66
Anne Line Bretteville-Jensen
Metrics
H-Index
i10 Index
Citation Counts
25
48
2,071
Rankings
Ranking Based On Selection: 67
Ola Brynildsrud
Metrics
H-Index
i10 Index
Citation Counts
24
42
2,609
Rankings
Ranking Based On Selection: 69
Gerd Flodgren
Metrics
H-Index
i10 Index
Citation Counts
24
30
5,964
Rankings
Ranking Based On Selection: 70
Steens A
Metrics
H-Index
i10 Index
Citation Counts
24
30
3,435
Rankings
Ranking Based On Selection: 71
public health
ecotoxicology
environmental epidemiolgy
endocrine disruption
neurodevelopment
Rankings
Ranking Based On Selection: 72
Chris Rose
Metrics
H-Index
i10 Index
Citation Counts
23
37
5,148
statistics
RCTs
infection control
health technology assessment
medical imaging
Rankings
Ranking Based On Selection: 73
Ann-Karin Olsen
Metrics
H-Index
i10 Index
Citation Counts
23
32
2,138
Rankings
Ranking Based On Selection: 75
Ida Henriette Caspersen
Metrics
H-Index
i10 Index
Citation Counts
22
29
8,071
Rankings
Ranking Based On Selection: 76
Ingunn Olea Lund
Metrics
H-Index
i10 Index
Citation Counts
22
37
1,490
health psychology
psychiatric epidemiology
mental health
substance use
family studies
Rankings
Ranking Based On Selection: 77
Trygve Ottersen
Metrics
H-Index
i10 Index
Citation Counts
22
43
2,447
Rankings
Ranking Based On Selection: 78
Thomas Sevenius Nilsen
Metrics
H-Index
i10 Index
Citation Counts
22
36
1,434
Rankings
Ranking Based On Selection: 80
Ashley Elizabeth Muller
Metrics
H-Index
i10 Index
Citation Counts
21
29
2,141
systematic reviews
substance use disorder
quality of life
exercise
Rankings
Ranking Based On Selection: 82
Jennifer L Dembinski
Metrics
H-Index
i10 Index
Citation Counts
21
31
7,368
Virology
immunology
gene therapy
mesenchymal stem cells
cancer stem cells
Rankings
Ranking Based On Selection: 83
Heather Munthe-Kaas
Metrics
H-Index
i10 Index
Citation Counts
20
26
5,833
Rankings
Ranking Based On Selection: 85
Line C. Gjerde
Metrics
H-Index
i10 Index
Citation Counts
20
28
1,229
Personality disorders
common mental disorders
sick leave
behavior genetics
Rankings
Ranking Based On Selection: 87
Sören Abel
Metrics
H-Index
i10 Index
Citation Counts
19
23
3,491
microbiology
infectious diseases
bacterial cell biology
population dynamics
antimicrobial resistance
Rankings
Ranking Based On Selection: 88
Marit Knapstad
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,379
public mental health
work and mental health
epidemiology
depression
evaluation research
Rankings
Ranking Based On Selection: 89
Katrine Mari Owe
Metrics
H-Index
i10 Index
Citation Counts
19
23
2,231
kvinnehelse
reproduktiv epidemiologi
fysisk aktivitet
statistikk
Rankings
Ranking Based On Selection: 90
Torleif Halkjelsvik
Metrics
H-Index
i10 Index
Citation Counts
19
29
939
Rankings
Ranking Based On Selection: 92
Ingeborg Lund
Metrics
H-Index
i10 Index
Citation Counts
19
29
964
Rankings
Ranking Based On Selection: 93
Solveig Jore
Metrics
H-Index
i10 Index
Citation Counts
18
19
1,203
Rankings
Ranking Based On Selection: 94
Lasse Bang
Metrics
H-Index
i10 Index
Citation Counts
18
21
867
Rankings
Ranking Based On Selection: 95
Anna Godøy
Metrics
H-Index
i10 Index
Citation Counts
17
19
878
Rankings
Ranking Based On Selection: 96
Anke Stüken (Stuken, Stueken)
Metrics
H-Index
i10 Index
Citation Counts
17
18
2,079
Rankings
Ranking Based On Selection: 97
Jon Bråte
Metrics
H-Index
i10 Index
Citation Counts
16
18
1,597
Rankings
Ranking Based On Selection: 98
Kim Stene-Larsen
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,070
Rankings
Ranking Based On Selection: 99
Kristian Alfsnes
Metrics
H-Index
i10 Index
Citation Counts
15
21
851
Rankings
Ranking Based On Selection: 100
Mari Vaage Wang
Metrics
H-Index
i10 Index
Citation Counts
15
22
1,127