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” (1,121,187 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: 1
Jaakko Tuomilehto
Public Health
Epidemiology
Diabetes
Cardiovascular Diseas
Metrics
 
H-Index
i10 Index
Citation
299
1,584
525,802
* Rankings
Ranking Based On Selection: 3
Jaakko Kaprio
genetic epidemiology
substance use
sleep
obesity
physical inactivit
Metrics
 
H-Index
i10 Index
Citation
203
1,258
222,441
* Rankings
Ranking Based On Selection: 4
Eija Tuominen
semiconductors
detectors
nanoelectronics
particle physics
quantum technologie
Metrics
 
H-Index
i10 Index
Citation
196
796
211,549
* Rankings
Ranking Based On Selection: 5
Jaakko Härkönen
Silicon detectors
radiation hardness
high energy physics instrumentatio
Metrics
 
H-Index
i10 Index
Citation
182
433
167,998
* Rankings
Ranking Based On Selection: 7
Hannele Yki Järvinen
NAFLD NASH CIRRHOSI
Metrics
 
H-Index
i10 Index
Citation
151
443
84,900
* Rankings
Ranking Based On Selection: 8
Mikael Knip
lasten immunivälitteiset sairaude
Metrics
 
H-Index
i10 Index
Citation
136
652
67,439
* Rankings
Ranking Based On Selection: 12
Joona Havukainen
particle physics
machine learnin
Metrics
 
H-Index
i10 Index
Citation
123
479
56,675
* Rankings
Ranking Based On Selection: 16
Yrjö Engeström
activity theory
expansive learnin
Metrics
 
H-Index
i10 Index
Citation
106
248
90,711
* Rankings
Ranking Based On Selection: 17
Jorma Paavonen
lääketied
Metrics
 
H-Index
i10 Index
Citation
104
405
43,732
* Rankings
Ranking Based On Selection: 19
Markku Partinen
Sleep research
traffic medicine
narcolepsy
sleep apnea
insomni
Metrics
 
H-Index
i10 Index
Citation
101
325
34,317
* Rankings
Ranking Based On Selection: 20
Kimmo Alho
Cognitive Neuroscience
Experimental Psychology
Attention
Memor
Metrics
 
H-Index
i10 Index
Citation
96
191
34,766
* Rankings
Ranking Based On Selection: 23
Seppo Meri
complement
parasite
Metrics
 
H-Index
i10 Index
Citation
95
313
28,710
* Rankings
Ranking Based On Selection: 24
Atte Meretoja
stroke
epidemiology
pharmacoeconomic
Metrics
 
H-Index
i10 Index
Citation
93
171
159,497
* Rankings
Ranking Based On Selection: 25
Jouni Hirvonen
pharmaceutical technology
drug delivery
nanotechnology
transderma
Metrics
 
H-Index
i10 Index
Citation
93
286
26,459
Rankings
Ranking Based On Selection: 1
Jaakko Tuomilehto
Metrics
 
H-Index
i10 Index
Citation Counts
299
1,584
525,802
Rankings
Ranking Based On Selection: 2
Mika Kivimaki
Metrics
 
H-Index
i10 Index
Citation Counts
232
1,341
378,921
Rankings
Ranking Based On Selection: 3
Jaakko Kaprio
Metrics
 
H-Index
i10 Index
Citation Counts
203
1,258
222,441
genetic epidemiology
substance use
sleep
obesity
physical inactivit
Rankings
Ranking Based On Selection: 4
Eija Tuominen
Metrics
 
H-Index
i10 Index
Citation Counts
196
796
211,549
semiconductors
detectors
nanoelectronics
particle physics
quantum technologie
Rankings
Ranking Based On Selection: 5
Jaakko Härkönen
Metrics
 
H-Index
i10 Index
Citation Counts
182
433
167,998
Silicon detectors
radiation hardness
high energy physics instrumentatio
Rankings
Ranking Based On Selection: 6
Aarno Palotie
Metrics
 
H-Index
i10 Index
Citation Counts
169
620
213,437
Rankings
Ranking Based On Selection: 7
Hannele Yki Järvinen
Metrics
 
H-Index
i10 Index
Citation Counts
151
443
84,900
Rankings
Ranking Based On Selection: 8
Mikael Knip
Metrics
 
H-Index
i10 Index
Citation Counts
136
652
67,439
lasten immunivälitteiset sairaude
Rankings
Ranking Based On Selection: 9
Hanski I
Metrics
 
H-Index
i10 Index
Citation Counts
130
362
77,122
Rankings
Ranking Based On Selection: 10
Samuli Ripatti
Metrics
 
H-Index
i10 Index
Citation Counts
127
335
95,947
Rankings
Ranking Based On Selection: 11
Hannu Siikonen
Metrics
 
H-Index
i10 Index
Citation Counts
125
480
57,410
Rankings
Ranking Based On Selection: 12
Joona Havukainen
Metrics
 
H-Index
i10 Index
Citation Counts
123
479
56,675
Rankings
Ranking Based On Selection: 13
Markku Leskela
Metrics
 
H-Index
i10 Index
Citation Counts
117
703
59,383
Rankings
Ranking Based On Selection: 14
Irma Thesleff
Metrics
 
H-Index
i10 Index
Citation Counts
117
274
44,227
Rankings
Ranking Based On Selection: 15
Katariina Salmela Aro
Metrics
 
H-Index
i10 Index
Citation Counts
108
334
38,259
Rankings
Ranking Based On Selection: 16
Yrjö Engeström
Metrics
 
H-Index
i10 Index
Citation Counts
106
248
90,711
Rankings
Ranking Based On Selection: 17
Jorma Paavonen
Metrics
 
H-Index
i10 Index
Citation Counts
104
405
43,732
Rankings
Ranking Based On Selection: 18
Hannu Kurki Suonio
Metrics
 
H-Index
i10 Index
Citation Counts
103
244
91,163
Rankings
Ranking Based On Selection: 19
Markku Partinen
Metrics
 
H-Index
i10 Index
Citation Counts
101
325
34,317
Sleep research
traffic medicine
narcolepsy
sleep apnea
insomni
Rankings
Ranking Based On Selection: 20
Kimmo Alho
Metrics
 
H-Index
i10 Index
Citation Counts
96
191
34,766
Cognitive Neuroscience
Experimental Psychology
Attention
Memor
Rankings
Ranking Based On Selection: 21
Jari Lahti
Metrics
 
H-Index
i10 Index
Citation Counts
95
247
30,938
Rankings
Ranking Based On Selection: 22
Kai Nordlund
Metrics
 
H-Index
i10 Index
Citation Counts
95
491
36,133
Rankings
Ranking Based On Selection: 23
Seppo Meri
Metrics
 
H-Index
i10 Index
Citation Counts
95
313
28,710
Rankings
Ranking Based On Selection: 24
Atte Meretoja
Metrics
 
H-Index
i10 Index
Citation Counts
93
171
159,497
Rankings
Ranking Based On Selection: 25
Jouni Hirvonen
Metrics
 
H-Index
i10 Index
Citation Counts
93
286
26,459
pharmaceutical technology
drug delivery
nanotechnology
transderma