Citation Rankings
Highly Cited Researchers
University of Iceland Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Genetics of common
chronic disease. Disease risk assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
196,816
108,811
0.553
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Human genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
156,979
68,595
0.437
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Statistics
biostatistics
survival analysis
clinical prediction models
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139,020
66,229
0.476
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
computational science
rate theory
electronic structure
catalysis
nanoclusters
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,914
41,684
0.535
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Astro particle physics
high-energy gamma rays
Cosmic rays
gamma-ray bursts
interstellar medium
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,488
25,678
0.392
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Remote Sensing
Image Analysis
Pattern Recognition
Signal Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,176
25,280
0.504
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Bioinformatics
Algorithms and Data Structures
Probabilistic Combinatorics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,050
17,654
0.880
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Cancer genetics
DNA repair
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,430
15,737
0.432
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,544
14,640
0.424
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Cyclodextrins
solubilization
stabilization
prodrugs
soft drugs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,503
12,546
0.374
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Hematology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,639
10,901
0.585
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Gamma-Ray Bursts
Cosmology
Galaxy Evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,232
9,436
0.389
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
fisheries
otolith
shark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,741
8,987
0.283
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Nutritional and environmental epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,166
8,637
0.710
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
CO2 storage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,088
8,193
0.479
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,224
7,447
0.489
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
epidemiology
stress
cancer
CVD
birth outcomes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,195
7,164
0.587
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
statistical genetics
genetic epidemiology
population genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,279
7,147
0.695
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
volcanology
petrology
geochemistry
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,474
6,362
0.386
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Ecological economics
industrial ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,983
6,210
0.778
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Cancer Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,080
6,184
0.765
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
sustainability
sustainable development
soil
geochemistry
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,868
5,962
0.502
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Plant population ecology
moss-vascular plant interaction
plant-animal interaction
biodiversity in the Arctic
effects of climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,998
5,934
0.457
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
Nutrition
Infancy
Childhood
Vulnerable groups
Diabetes mellitus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,571
5,858
0.333
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Quantum physics: theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,485
5,699
0.456
* Last 6 Years Citation Counts Rankings
Rankings
556
1
1
Ranking Based On Selection: 1
Vilmundur Gudnason
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
196,816
108,811
0.553
Genetics of common
chronic disease. Disease risk assessment
* Last 6 Years Citation Counts Rankings
Rankings
1,700
2
2
Ranking Based On Selection: 2
Unnur Thorsteinsdottir
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
156,979
68,595
0.437
* Last 6 Years Citation Counts Rankings
Rankings
1,801
3
3
Ranking Based On Selection: 3
Thor Aspelund
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139,020
66,229
0.476
Statistics
biostatistics
survival analysis
clinical prediction models
* Last 6 Years Citation Counts Rankings
Rankings
3,772
5
4
Ranking Based On Selection: 4
Hannes Jónsson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,914
41,684
0.535
computational science
rate theory
electronic structure
catalysis
nanoclusters
* Last 6 Years Citation Counts Rankings
Rankings
8,107
8
5
Ranking Based On Selection: 5
Guðlaugur Jóhannesson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,488
25,678
0.392
Astro particle physics
high-energy gamma rays
Cosmic rays
gamma-ray bursts
interstellar medium
* Last 6 Years Citation Counts Rankings
Rankings
8,309
10
6
Ranking Based On Selection: 6
Jón Atli Benediktsson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,176
25,280
0.504
Remote Sensing
Image Analysis
Pattern Recognition
Signal Processing
* Last 6 Years Citation Counts Rankings
Rankings
14,341
13
7
Ranking Based On Selection: 7
Páll Melsted
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,050
17,654
0.880
Bioinformatics
Algorithms and Data Structures
Probabilistic Combinatorics
* Last 6 Years Citation Counts Rankings
Rankings
17,102
17
8
Ranking Based On Selection: 8
Jorunn E Eyfjord
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,430
15,737
0.432
Cancer genetics
DNA repair
* Last 6 Years Citation Counts Rankings
Rankings
19,014
18
9
Ranking Based On Selection: 9
Agnar Helgason
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,544
14,640
0.424
* Last 6 Years Citation Counts Rankings
Rankings
24,117
20
10
Ranking Based On Selection: 10
Thorsteinn Loftsson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,503
12,546
0.374
* Last 6 Years Citation Counts Rankings
Rankings
29,802
22
11
Ranking Based On Selection: 11
Sigurður Yngvi Kristinsson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,639
10,901
0.585
* Last 6 Years Citation Counts Rankings
Rankings
36,897
26
12
Ranking Based On Selection: 12
Pall Jakobsson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,232
9,436
0.389
Gamma-Ray Bursts
Cosmology
Galaxy Evolution
* Last 6 Years Citation Counts Rankings
Rankings
39,686
27
13
Ranking Based On Selection: 13
Steven Campana
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,741
8,987
0.283
* Last 6 Years Citation Counts Rankings
Rankings
42,047
28
14
Ranking Based On Selection: 14
Thorhallur I Halldorsson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,166
8,637
0.710
Nutritional and environmental epidemiology
* Last 6 Years Citation Counts Rankings
Rankings
45,341
29
15
Ranking Based On Selection: 15
Sigurdur R Gislason
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,088
8,193
0.479
* Last 6 Years Citation Counts Rankings
Rankings
51,923
34
16
Ranking Based On Selection: 16
Ogmundsdottir Mh
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,224
7,447
0.489
* Last 6 Years Citation Counts Rankings
Rankings
54,806
36
17
Ranking Based On Selection: 17
Unnur Valdimarsdóttir
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,195
7,164
0.587
epidemiology
stress
cancer
CVD
birth outcomes
* Last 6 Years Citation Counts Rankings
Rankings
54,985
37
18
Ranking Based On Selection: 18
Johanna Jakobsdottir
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,279
7,147
0.695
statistical genetics
genetic epidemiology
population genetics
* Last 6 Years Citation Counts Rankings
Rankings
64,631
38
19
Ranking Based On Selection: 19
Thor Thordarson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,474
6,362
0.386
volcanology
petrology
geochemistry
climate change
* Last 6 Years Citation Counts Rankings
Rankings
66,731
39
20
Ranking Based On Selection: 20
Brynhildur Davidsdottir
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,983
6,210
0.778
Ecological economics
industrial ecology
* Last 6 Years Citation Counts Rankings
Rankings
67,112
40
21
Ranking Based On Selection: 21
Olafur Stefansson
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,080
6,184
0.765
* Last 6 Years Citation Counts Rankings
Rankings
70,468
42
22
Ranking Based On Selection: 22
Kristin Vala Ragnarsdottir
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,868
5,962
0.502
sustainability
sustainable development
soil
geochemistry
biogeochemistry
* Last 6 Years Citation Counts Rankings
Rankings
70,904
43
23
Ranking Based On Selection: 23
Ingibjörg Svala Jónsdóttir
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,998
5,934
0.457
Plant population ecology
moss-vascular plant interaction
plant-animal interaction
biodiversity in the Arctic
effects of climate change
* Last 6 Years Citation Counts Rankings
Rankings
72,055
44
24
Ranking Based On Selection: 24
İnga Thorsdottir
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,571
5,858
0.333
Nutrition
Infancy
Childhood
Vulnerable groups
Diabetes mellitus
* Last 6 Years Citation Counts Rankings
Rankings
74,740
45
25
Ranking Based On Selection: 25
Ivan Shelykh
University of Iceland
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,485
5,699
0.456