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" (998,570 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
Vilmundur Gudnason
Genetics of common
chronic disease. Disease risk assessment
Metrics
 
H-Index
i10 Index
Citation
197
749
209,530
* Rankings
Ranking Based On Selection: 3
Gudmundur Hrafn Gudmundsson
innate immunity
infection
inflammation
gene regulation
epithelia
Metrics
 
H-Index
i10 Index
Citation
53
88
15,809
* Rankings
Ranking Based On Selection: 4
Eirikur Steingrimsson
molecular biology
genetics
development
melanocytes
melanoma
Metrics
 
H-Index
i10 Index
Citation
47
82
11,010

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info

* Rankings
Ranking Based On Selection: 12
Hans Tomas Bjornsson
Kabuki syndrome
Epigenetics
Mendelian disorders of Epigenetic Machinery
Pilarowski-Bjornsson syndrome
Metrics
 
H-Index
i10 Index
Citation
27
44
4,084
* Rankings
Ranking Based On Selection: 14
Sigríður Rut Franzdóttir
Developmental neurobiology
Neurodegeneration
Evo-Devo
Molecular cell biology
Metrics
 
H-Index
i10 Index
Citation
15
16
767
* Rankings
Ranking Based On Selection: 15
Erna Magnúsdóttir
Transcriptional regulation
cancer epigenetics and transcripiton
Metrics
 
H-Index
i10 Index
Citation
15
15
2,720
* Rankings
Ranking Based On Selection: 16
Birkir Thor Bragason
Cell biology
molecular biology
amyloid disorders
acute phase response
Metrics
 
H-Index
i10 Index
Citation
15
17
783
* Rankings
Ranking Based On Selection: 17
Gudrun Valdimarsdottir
Stem cell biology
developmental biology
Signal transduction
TGFbeta signalling
Metrics
 
H-Index
i10 Index
Citation
14
15
5,316
* Rankings
Ranking Based On Selection: 18
Alexander Schepsky
Cell Culture
breast cancer
molecular biology
melanoma
Metrics
 
H-Index
i10 Index
Citation
12
13
1,211
* Rankings
Ranking Based On Selection: 22
Sara Sigurbjörnsdóttir
Hedgehog signaling
Smoothened
chondrocytes
molecular cell biology
Metrics
 
H-Index
i10 Index
Citation
8
8
811
* Rankings
Ranking Based On Selection: 24
Katrin Möller
Epigenetic machienery
Neurodevelopmental disorders
Phagocytosis
Autophagy
Metrics
 
H-Index
i10 Index
Citation
5
5
319
* Rankings
Ranking Based On Selection: 30
Kaan Okay
Bioinformatics
Functional Genomics
Epigenetics
Artificial intelligence
Metrics
 
H-Index
i10 Index
Citation
2
1
20
* Rankings
Ranking Based On Selection: 32
Karen Kristjansdottir
DNA repair
RNA epigeneti
Epitranscriptomics
breast cancer
m6A
Metrics
 
H-Index
i10 Index
Citation
2
1
28
Rankings
Ranking Based On Selection: 1
Vilmundur Gudnason
Metrics
 
H-Index
i10 Index
Citation Counts
197
749
209,530
Genetics of common
chronic disease. Disease risk assessment
Rankings
Ranking Based On Selection: 2
Jorunn E Eyfjord
Metrics
 
H-Index
i10 Index
Citation Counts
57
98
38,265
Rankings
Ranking Based On Selection: 3
Gudmundur Hrafn Gudmundsson
Metrics
 
H-Index
i10 Index
Citation Counts
53
88
15,809
innate immunity
infection
inflammation
gene regulation
epithelia
Rankings
Ranking Based On Selection: 4
Eirikur Steingrimsson
Metrics
 
H-Index
i10 Index
Citation Counts
47
82
11,010
molecular biology
genetics
development
melanocytes
melanoma
Rankings
Ranking Based On Selection: 5
Ogmundsdottir HM
Metrics
 
H-Index
i10 Index
Citation Counts
41
83
5,219
Rankings
Ranking Based On Selection: 6
Sigurður Ingvarsson
Metrics
 
H-Index
i10 Index
Citation Counts
35
73
5,027
Rankings
Ranking Based On Selection: 7
Zophonías O Jónsson
Metrics
 
H-Index
i10 Index
Citation Counts
35
53
6,014
Rankings
Ranking Based On Selection: 8
Ólafur S Andrésson
Metrics
 
H-Index
i10 Index
Citation Counts
33
53
3,010
Rankings
Ranking Based On Selection: 9
Snaevar Sigurdsson
Metrics
 
H-Index
i10 Index
Citation Counts
31
43
6,490
Rankings
Ranking Based On Selection: 10
Jon Thor Bergthorsson
Metrics
 
H-Index
i10 Index
Citation Counts
31
42
9,866

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info

Rankings
Ranking Based On Selection: 11
Ingibjorg Hardardottir
Metrics
 
H-Index
i10 Index
Citation Counts
29
45
2,823
Rankings
Ranking Based On Selection: 12
Hans Tomas Bjornsson
Metrics
 
H-Index
i10 Index
Citation Counts
27
44
4,084
Kabuki syndrome
Epigenetics
Mendelian disorders of Epigenetic Machinery
Pilarowski-Bjornsson syndrome
Rankings
Ranking Based On Selection: 13
Sigridur Thorbjarnardottir
Metrics
 
H-Index
i10 Index
Citation Counts
18
22
892
Rankings
Ranking Based On Selection: 14
Sigríður Rut Franzdóttir
Metrics
 
H-Index
i10 Index
Citation Counts
15
16
767
Developmental neurobiology
Neurodegeneration
Evo-Devo
Molecular cell biology
Rankings
Ranking Based On Selection: 15
Erna Magnúsdóttir
Metrics
 
H-Index
i10 Index
Citation Counts
15
15
2,720
Transcriptional regulation
cancer epigenetics and transcripiton
Rankings
Ranking Based On Selection: 16
Birkir Thor Bragason
Metrics
 
H-Index
i10 Index
Citation Counts
15
17
783
Cell biology
molecular biology
amyloid disorders
acute phase response
Rankings
Ranking Based On Selection: 17
Gudrun Valdimarsdottir
Metrics
 
H-Index
i10 Index
Citation Counts
14
15
5,316
Stem cell biology
developmental biology
Signal transduction
TGFbeta signalling
Rankings
Ranking Based On Selection: 18
Alexander Schepsky
Metrics
 
H-Index
i10 Index
Citation Counts
12
13
1,211
Rankings
Ranking Based On Selection: 19
Berglind Osk Einarsdottir
Metrics
 
H-Index
i10 Index
Citation Counts
12
13
1,326
Rankings
Ranking Based On Selection: 20
Adrián López García De Lomana
Metrics
 
H-Index
i10 Index
Citation Counts
12
16
469
Rankings
Ranking Based On Selection: 21
Linda Vidarsdottir
Metrics
 
H-Index
i10 Index
Citation Counts
9
9
1,014
Rankings
Ranking Based On Selection: 22
Sara Sigurbjörnsdóttir
Metrics
 
H-Index
i10 Index
Citation Counts
8
8
811
Hedgehog signaling
Smoothened
chondrocytes
molecular cell biology
Rankings
Ranking Based On Selection: 23
Fluturë Novakazi
Metrics
 
H-Index
i10 Index
Citation Counts
7
7
219
Rankings
Ranking Based On Selection: 24
Katrin Möller
Metrics
 
H-Index
i10 Index
Citation Counts
5
5
319
Epigenetic machienery
Neurodevelopmental disorders
Phagocytosis
Autophagy
Rankings
Ranking Based On Selection: 25
Charles Christian Riis Hansen
Metrics
 
H-Index
i10 Index
Citation Counts
4
2
91
Rankings
Ranking Based On Selection: 26
Elisabet Alexandra Frick
Metrics
 
H-Index
i10 Index
Citation Counts
5
2
54
Rankings
Ranking Based On Selection: 27
Stefan Hermanowicz
Metrics
 
H-Index
i10 Index
Citation Counts
3
2
66
Rankings
Ranking Based On Selection: 28
Christian Christensen
Metrics
 
H-Index
i10 Index
Citation Counts
3
1
35
Rankings
Ranking Based On Selection: 29
Evangeline Breeta R
Metrics
 
H-Index
i10 Index
Citation Counts
2
2
51
Rankings
Ranking Based On Selection: 30
Kaan Okay
Metrics
 
H-Index
i10 Index
Citation Counts
2
1
20
Bioinformatics
Functional Genomics
Epigenetics
Artificial intelligence
Rankings
Ranking Based On Selection: 31
Kimberley Jade Anderson
Metrics
 
H-Index
i10 Index
Citation Counts
2
0
16
Rankings
Ranking Based On Selection: 32
Karen Kristjansdottir
Metrics
 
H-Index
i10 Index
Citation Counts
2
1
28
DNA repair
RNA epigeneti
Epitranscriptomics
breast cancer
m6A