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 rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,121,279 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 2
Hreinn Stefansson
genetics
schizophrenia
autism
Alzheimer´s
Parkinson´
Metrics
 
H-Index
i10 Index
Citation
124
262
104,377
* Rankings
Ranking Based On Selection: 4
Gísli Másson
Bioinformatics
Human Genetics
Genomics
Computational Biology
Algebr
Metrics
 
H-Index
i10 Index
Citation
84
121
37,283
* Rankings
Ranking Based On Selection: 5
Valgerdur Steinthorsdottir
human genetics
type 2 diabetes
reproduction
preeclampsia
endometriosi
Metrics
 
H-Index
i10 Index
Citation
80
120
62,391
* Rankings
Ranking Based On Selection: 7
Ingileif Jonsdottir
immunology
vaccinology
genetic
Metrics
 
H-Index
i10 Index
Citation
75
168
25,679
* Rankings
Ranking Based On Selection: 9
G. Bragi Walters
Population genetic
Metrics
 
H-Index
i10 Index
Citation
60
86
46,051
* Rankings
Ranking Based On Selection: 12
Unnur Styrkarsdottir
human genetics
molecular biology
osteoporosis
osteoarthritis
microbiom
Metrics
 
H-Index
i10 Index
Citation
57
81
22,902
* Rankings
Ranking Based On Selection: 14
Vinicius Tragante
Machine learning
bioinformatics
GWAS
Epidemiology
evolutionary computin
Metrics
 
H-Index
i10 Index
Citation
42
88
8,519
* Rankings
Ranking Based On Selection: 19
Hákon Jónsson
Statistics
bioinformatics
biology
population genetic
Metrics
 
H-Index
i10 Index
Citation
28
42
10,551
* Rankings
Ranking Based On Selection: 24
Muhammad Sulaman Nawaz
Statistical Genetics
Bioinformatics
Neurogenetics
Data Scienc
Metrics
 
H-Index
i10 Index
Citation
19
31
1,247
Rankings
Ranking Based On Selection: 1
Daniel Gudbjartsson
Metrics
 
H-Index
i10 Index
Citation Counts
138
294
89,759
Rankings
Ranking Based On Selection: 2
Hreinn Stefansson
Metrics
 
H-Index
i10 Index
Citation Counts
124
262
104,377
genetics
schizophrenia
autism
Alzheimer´s
Parkinson´
Rankings
Ranking Based On Selection: 3
Patrick Sulem
Metrics
 
H-Index
i10 Index
Citation Counts
113
234
57,968
Rankings
Ranking Based On Selection: 4
Gísli Másson
Metrics
 
H-Index
i10 Index
Citation Counts
84
121
37,283
Bioinformatics
Human Genetics
Genomics
Computational Biology
Algebr
Rankings
Ranking Based On Selection: 5
Valgerdur Steinthorsdottir
Metrics
 
H-Index
i10 Index
Citation Counts
80
120
62,391
human genetics
type 2 diabetes
reproduction
preeclampsia
endometriosi
Rankings
Ranking Based On Selection: 6
Hilma Hólm
Metrics
 
H-Index
i10 Index
Citation Counts
79
156
43,731
Rankings
Ranking Based On Selection: 7
Ingileif Jonsdottir
Metrics
 
H-Index
i10 Index
Citation Counts
75
168
25,679
immunology
vaccinology
genetic
Rankings
Ranking Based On Selection: 8
Thorgeir Thorgeirsson
Metrics
 
H-Index
i10 Index
Citation Counts
70
115
37,037
Rankings
Ranking Based On Selection: 9
G. Bragi Walters
Metrics
 
H-Index
i10 Index
Citation Counts
60
86
46,051
Rankings
Ranking Based On Selection: 10
Michael Frigge
Metrics
 
H-Index
i10 Index
Citation Counts
59
68
28,339
Rankings
Ranking Based On Selection: 11
Stacy Steinberg
Metrics
 
H-Index
i10 Index
Citation Counts
58
66
53,125
Rankings
Ranking Based On Selection: 12
Unnur Styrkarsdottir
Metrics
 
H-Index
i10 Index
Citation Counts
57
81
22,902
human genetics
molecular biology
osteoporosis
osteoarthritis
microbiom
Rankings
Ranking Based On Selection: 13
Computational Biology
Genomics
Comparative Genomics
Regulatory Genomics
Population Genetic
Rankings
Ranking Based On Selection: 14
Vinicius Tragante
Metrics
 
H-Index
i10 Index
Citation Counts
42
88
8,519
Machine learning
bioinformatics
GWAS
Epidemiology
evolutionary computin
Rankings
Ranking Based On Selection: 15
Gyda Bjornsdottir
Metrics
 
H-Index
i10 Index
Citation Counts
41
55
20,545
Rankings
Ranking Based On Selection: 16
Asmundur Oddsson
Metrics
 
H-Index
i10 Index
Citation Counts
38
64
8,213
Rankings
Ranking Based On Selection: 17
Gudmundur Norddahl
Metrics
 
H-Index
i10 Index
Citation Counts
34
50
9,847
Rankings
Ranking Based On Selection: 18
Sigrún Helga Lund
Metrics
 
H-Index
i10 Index
Citation Counts
34
85
5,458
Rankings
Ranking Based On Selection: 19
Hákon Jónsson
Metrics
 
H-Index
i10 Index
Citation Counts
28
42
10,551
Statistics
bioinformatics
biology
population genetic
Rankings
Ranking Based On Selection: 20
Egil Ferkingstad
Metrics
 
H-Index
i10 Index
Citation Counts
25
38
3,305
Rankings
Ranking Based On Selection: 21
Gudny A. Arnadottir
Metrics
 
H-Index
i10 Index
Citation Counts
23
33
4,749
Rankings
Ranking Based On Selection: 22
Gudmundur A Thorisson
Metrics
 
H-Index
i10 Index
Citation Counts
22
28
23,894
Rankings
Ranking Based On Selection: 23
Brynjar O. Jensson
Metrics
 
H-Index
i10 Index
Citation Counts
20
28
5,398
Rankings
Ranking Based On Selection: 24
Muhammad Sulaman Nawaz
Metrics
 
H-Index
i10 Index
Citation Counts
19
31
1,247
Statistical Genetics
Bioinformatics
Neurogenetics
Data Scienc
Rankings
Ranking Based On Selection: 25
Ragnar P Kristjansson
Metrics
 
H-Index
i10 Index
Citation Counts
18
20
1,714