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" (873,937 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
Stephanie Sanders
sexuality
gender
sexual orientation
sexual health
sex/gender development
Metrics
H-Index
i10 Index
Citation
67
152
16,406
* Rankings
Ranking Based On Selection :2
Alessandro Flammini
computational social science
network science
data science
Metrics
H-Index
i10 Index
Citation
64
108
28,267
* Rankings
Ranking Based On Selection :3
William R Thompson
international relations
international security
international conflict
political science
international political economy
Metrics
H-Index
i10 Index
Citation
63
199
17,227
* Rankings
Ranking Based On Selection :4
Blaise Cronin
Bibliometrics
Informetrics
Scientometrics
Webometrics
Scholarly Communication
Metrics
H-Index
i10 Index
Citation
62
181
17,049
* Rankings
Ranking Based On Selection :5
Cassidy R Sugimoto
science policy
scientometrics
scholarly communication
science communication
Metrics
H-Index
i10 Index
Citation
58
145
17,055
Johan Bollen
network science
complex systems
computational social science
cognitive science
bibliometrics
Metrics
H-Index
i10 Index
Citation
48
97
20,951
* Rankings
Ranking Based On Selection :10
Xiaozhong Liu
Information Retrieval
Natural Language Processing
Digital Library
Semantic Web
Metadata
Metrics
H-Index
i10 Index
Citation
29
77
3,300
* Rankings
Ranking Based On Selection :12
Timothy Hellwig
political behavior
political economy
economic voting
political parties
Metrics
H-Index
i10 Index
Citation
27
39
3,385
* Rankings
Ranking Based On Selection :13
Jeffrey Hart
international political economy
politics of the Internet
international competition in high technology
Metrics
H-Index
i10 Index
Citation
27
56
5,553
Daniel Callison
school library media
inquiry
adult education
management
instructional design
Metrics
H-Index
i10 Index
Citation
21
37
1,405
Kelly Donahue
adolescent health
transgender and gender expansive youth
differences of sexual development
Metrics
H-Index
i10 Index
Citation
18
19
1,010
Adam P Liff
Japanese politics & foreign policy
East Asia security
US Asia strategy
US-Japan-China relations
Metrics
H-Index
i10 Index
Citation
17
25
1,813
Andrew Asher|Andrew D Asher
Anthropology of Information
Search Systems
Information Ethics
Library Ethnography
European Union
Metrics
H-Index
i10 Index
Citation
16
25
1,395
Aurelian Craiutu
political theory
history of political thought
political philosophy
French thought
Metrics
H-Index
i10 Index
Citation
16
23
1,223
Steven W Webster
American political behavior
political psychology
elections
public opinion
Metrics
H-Index
i10 Index
Citation
13
13
2,838
William Kindred Winecoff
International Relations
International Political Economy
Finance
Banking
Networks
Metrics
H-Index
i10 Index
Citation
12
12
880
Lois Ann Scheidt
Adolescents’ social uses of the internet
Computer-Mediated Communication
Human-Computer Interaction
gender representation
Metrics
H-Index
i10 Index
Citation
12
12
4,699
Girish Mallapragada
crowdsourcing
networks
innovation
online marketing
political advertising
Metrics
H-Index
i10 Index
Citation
11
11
1,499
Karissa Mckelvey
Collective action
Distributed socio-technical systems
Information visualization
Computational social science
Metrics
H-Index
i10 Index
Citation
8
8
1,029
Jason Wu
Political Science
Chinese Politics
Public Opinion
Authoritarianism
East Asia
Metrics
H-Index
i10 Index
Citation
4
3
45
Sarah Carter
Librarianship
Pedagogy
Information Literacy
Art & Design
Access Services
Metrics
H-Index
i10 Index
Citation
3
0
17
Rankings
Ranking Based On Selection: 1
Stephanie Sanders
Metrics
H-Index
i10 Index
Citation Counts
67
152
16,406
sexuality
gender
sexual orientation
sexual health
sex/gender development
Rankings
Ranking Based On Selection: 2
Alessandro Flammini
Metrics
H-Index
i10 Index
Citation Counts
64
108
28,267
computational social science
network science
data science
Rankings
Ranking Based On Selection: 3
William R Thompson
Metrics
H-Index
i10 Index
Citation Counts
63
199
17,227
international relations
international security
international conflict
political science
international political economy
Rankings
Ranking Based On Selection: 4
Blaise Cronin
Metrics
H-Index
i10 Index
Citation Counts
62
181
17,049
Bibliometrics
Informetrics
Scientometrics
Webometrics
Scholarly Communication
Rankings
Ranking Based On Selection: 5
Cassidy R Sugimoto
Metrics
H-Index
i10 Index
Citation Counts
58
145
17,055
science policy
scientometrics
scholarly communication
science communication
Rankings
Ranking Based On Selection: 6
Johan Bollen
Metrics
H-Index
i10 Index
Citation Counts
48
97
20,951
network science
complex systems
computational social science
cognitive science
bibliometrics
Rankings
Ranking Based On Selection: 7
Sumit Ganguly
Metrics
H-Index
i10 Index
Citation Counts
47
137
7,654
Rankings
Ranking Based On Selection: 8
Gerald Wright
Metrics
H-Index
i10 Index
Citation Counts
37
65
9,592
Rankings
Ranking Based On Selection: 9
Robert P Light
Metrics
H-Index
i10 Index
Citation Counts
34
42
4,338
Rankings
Ranking Based On Selection: 10
Xiaozhong Liu
Metrics
H-Index
i10 Index
Citation Counts
29
77
3,300
Information Retrieval
Natural Language Processing
Digital Library
Semantic Web
Metadata
Rankings
Ranking Based On Selection: 11
Maureen Pirog
Metrics
H-Index
i10 Index
Citation Counts
29
53
3,529
Rankings
Ranking Based On Selection: 12
Timothy Hellwig
Metrics
H-Index
i10 Index
Citation Counts
27
39
3,385
political behavior
political economy
economic voting
political parties
Rankings
Ranking Based On Selection: 13
Jeffrey Hart
Metrics
H-Index
i10 Index
Citation Counts
27
56
5,553
international political economy
politics of the Internet
international competition in high technology
Rankings
Ranking Based On Selection: 14
Lauren M Maclean
Metrics
H-Index
i10 Index
Citation Counts
25
33
2,681
Rankings
Ranking Based On Selection: 15
William Bianco
Metrics
H-Index
i10 Index
Citation Counts
21
24
2,692
Rankings
Ranking Based On Selection: 16
Daniel Callison
Metrics
H-Index
i10 Index
Citation Counts
21
37
1,405
school library media
inquiry
adult education
management
instructional design
Rankings
Ranking Based On Selection: 17
Regina Smyth
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,472
Comparative Politics
Post-Communist Politics
Political Economy
Rankings
Ranking Based On Selection: 18
Kelly Donahue
Metrics
H-Index
i10 Index
Citation Counts
18
19
1,010
adolescent health
transgender and gender expansive youth
differences of sexual development
Rankings
Ranking Based On Selection: 19
Adam P Liff
Metrics
H-Index
i10 Index
Citation Counts
17
25
1,813
Japanese politics & foreign policy
East Asia security
US Asia strategy
US-Japan-China relations
Rankings
Ranking Based On Selection: 20
Jessica O Reilly
Metrics
H-Index
i10 Index
Citation Counts
17
20
1,770
Rankings
Ranking Based On Selection: 21
Andrew Asher|Andrew D Asher
Metrics
H-Index
i10 Index
Citation Counts
16
25
1,395
Anthropology of Information
Search Systems
Information Ethics
Library Ethnography
European Union
Rankings
Ranking Based On Selection: 22
Aurelian Craiutu
Metrics
H-Index
i10 Index
Citation Counts
16
23
1,223
political theory
history of political thought
political philosophy
French thought
Rankings
Ranking Based On Selection: 23
Steven W Webster
Metrics
H-Index
i10 Index
Citation Counts
13
13
2,838
American political behavior
political psychology
elections
public opinion
Rankings
Ranking Based On Selection: 24
William Kindred Winecoff
Metrics
H-Index
i10 Index
Citation Counts
12
12
880
International Relations
International Political Economy
Finance
Banking
Networks
Rankings
Ranking Based On Selection: 25
David Bosco
Metrics
H-Index
i10 Index
Citation Counts
12
17
1,218
International organizations
international law
global governance
Rankings
Ranking Based On Selection: 26
Lois Ann Scheidt
Metrics
H-Index
i10 Index
Citation Counts
12
12
4,699
Adolescents’ social uses of the internet
Computer-Mediated Communication
Human-Computer Interaction
gender representation
Rankings
Ranking Based On Selection: 27
Girish Mallapragada
Metrics
H-Index
i10 Index
Citation Counts
11
11
1,499
crowdsourcing
networks
innovation
online marketing
political advertising
Rankings
Ranking Based On Selection: 28
Karissa Mckelvey
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,029
Collective action
Distributed socio-technical systems
Information visualization
Computational social science
Rankings
Ranking Based On Selection: 29
Jason Wu
Metrics
H-Index
i10 Index
Citation Counts
4
3
45
Political Science
Chinese Politics
Public Opinion
Authoritarianism
East Asia
Rankings
Ranking Based On Selection: 30
Heidi Elaine Dowding
Metrics
H-Index
i10 Index
Citation Counts
4
1
33
Digital Preservation
Digital Curation
Scholarly Communication
Rankings
Ranking Based On Selection: 31
Colin Fisk
Metrics
H-Index
i10 Index
Citation Counts
3
2
36
American politics
voting behavior
elections
polarization
public opinion
Rankings
Ranking Based On Selection: 32
Sarah Carter
Metrics
H-Index
i10 Index
Citation Counts
3
0
17
Librarianship
Pedagogy
Information Literacy
Art & Design
Access Services
Rankings
Ranking Based On Selection: 33
Ewa Zegler-Poleska
Metrics
H-Index
i10 Index
Citation Counts
3
2
38
Preprints
Research data
Scholarly communication
Scientometrics
Rankings
Ranking Based On Selection: 34
Leanne Nay
Metrics
H-Index
i10 Index
Citation Counts
2
1
22
Rankings
Ranking Based On Selection: 35
Jennifer A Liss
Metrics
H-Index
i10 Index
Citation Counts
2
0
21