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" (873,864 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
Mark Salzer
Psychiatric Rehabilitation
Mental Health Services
Metrics
H-Index
i10 Index
Citation
49
116
9,741
Richard E Deeg
Comparative Political Economy
Financial Regulation
comparative politics
political economy
Metrics
H-Index
i10 Index
Citation
33
44
6,680
Steven Bell
library and information science
academic libraries
design thinking
user experience
Metrics
H-Index
i10 Index
Citation
24
69
3,649
Steven J Bell
leadership
academic librarianship
user experience
design thinking
instructional technology
Metrics
H-Index
i10 Index
Citation
22
51
2,208
Sean Yom
Comparative Politics
Middle East
North Africa
Democracy
Authoritarianism
Metrics
H-Index
i10 Index
Citation
20
31
2,251
Hillel David Soifer
state building
state capacity
Latin American politics
qualitative methods
research design
Metrics
H-Index
i10 Index
Citation
16
23
2,795
Orfeo Fioretos
International relations
political economy
global governance
Europe
Metrics
H-Index
i10 Index
Citation
15
17
2,219
Michael Khoo
communities of practice
digital libraries
metadata
organizational knowledge
sociotechnical studies
Metrics
H-Index
i10 Index
Citation
15
23
1,028
Barbara Ferman
Urban Politics
civic engagement
youth leadership development
Metrics
H-Index
i10 Index
Citation
15
21
1,435
Emilia Zankina
elite theory
East European studies
populism
civil service reform
gender representation
Metrics
H-Index
i10 Index
Citation
11
14
310
Roselyn Hsueh
Comparative Politics
Political Economy
Globalization
Regulation
Governance
Metrics
H-Index
i10 Index
Citation
8
8
691
Rabie Ramadan
Traffic Flow Modeling and Simulation
Hyperbolic Conservation Laws
Numerical Differential Equations
Metrics
H-Index
i10 Index
Citation
5
5
172
Hawley Fogg-Davis
Gender and Sexuality
Feminist Theory
Discrimination Law
African American Political Theory
Metrics
H-Index
i10 Index
Citation
5
3
211
Kristina De Voe
Information literacy
scholarly communications
open education
Metrics
H-Index
i10 Index
Citation
5
4
125
Abhit Bhandari
political economy of development
African politics
inequality
institutions
Metrics
H-Index
i10 Index
Citation
4
3
83
Nyron N Crawford
Political Psychology
Black Politics
Urban Politics
Policy Studies
Public Opinion
Metrics
H-Index
i10 Index
Citation
4
2
115
Margaret Janz
Library Science
Scholarly Communication
Science Communication
Research Data Management
Information Literacy
Metrics
H-Index
i10 Index
Citation
3
2
73
* Rankings
Ranking Based On Selection :31
Paul Nadeau
International relations
International governance
US-Japan relations
East Asia
Metrics
H-Index
i10 Index
Citation
3
0
13
Gretchen Sneff
library science
scholarly communication
research data management
science communication
Metrics
H-Index
i10 Index
Citation
1
0
2
Rankings
Ranking Based On Selection: 1
Mark Salzer
Metrics
H-Index
i10 Index
Citation Counts
49
116
9,741
Psychiatric Rehabilitation
Mental Health Services
Rankings
Ranking Based On Selection: 2
Lance Holbert
Metrics
H-Index
i10 Index
Citation Counts
48
78
11,320
Rankings
Ranking Based On Selection: 3
Richard E Deeg
Metrics
H-Index
i10 Index
Citation Counts
33
44
6,680
Comparative Political Economy
Financial Regulation
comparative politics
political economy
Rankings
Ranking Based On Selection: 4
Michael Ryan
Metrics
H-Index
i10 Index
Citation Counts
27
51
6,447
Rankings
Ranking Based On Selection: 5
Steven Bell
Metrics
H-Index
i10 Index
Citation Counts
24
69
3,649
library and information science
academic libraries
design thinking
user experience
Rankings
Ranking Based On Selection: 6
Steven J Bell
Metrics
H-Index
i10 Index
Citation Counts
22
51
2,208
leadership
academic librarianship
user experience
design thinking
instructional technology
Rankings
Ranking Based On Selection: 7
Sean Yom
Metrics
H-Index
i10 Index
Citation Counts
20
31
2,251
Comparative Politics
Middle East
North Africa
Democracy
Authoritarianism
Rankings
Ranking Based On Selection: 8
Michael W Sances
Metrics
H-Index
i10 Index
Citation Counts
19
23
2,530
Rankings
Ranking Based On Selection: 9
Hillel David Soifer
Metrics
H-Index
i10 Index
Citation Counts
16
23
2,795
state building
state capacity
Latin American politics
qualitative methods
research design
Rankings
Ranking Based On Selection: 10
Orfeo Fioretos
Metrics
H-Index
i10 Index
Citation Counts
15
17
2,219
International relations
political economy
global governance
Europe
Rankings
Ranking Based On Selection: 11
Gary Mucciaroni
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,503
Rankings
Ranking Based On Selection: 12
Michael Khoo
Metrics
H-Index
i10 Index
Citation Counts
15
23
1,028
communities of practice
digital libraries
metadata
organizational knowledge
sociotechnical studies
Rankings
Ranking Based On Selection: 13
Barbara Ferman
Metrics
H-Index
i10 Index
Citation Counts
15
21
1,435
Rankings
Ranking Based On Selection: 14
Michael Hagen
Metrics
H-Index
i10 Index
Citation Counts
15
18
1,743
Rankings
Ranking Based On Selection: 15
Joseph M Schwartz
Metrics
H-Index
i10 Index
Citation Counts
13
14
697
Rankings
Ranking Based On Selection: 16
Sandra L Suarez
Metrics
H-Index
i10 Index
Citation Counts
13
13
1,445
Rankings
Ranking Based On Selection: 17
Adam Ziegfeld
Metrics
H-Index
i10 Index
Citation Counts
12
14
525
Rankings
Ranking Based On Selection: 18
Emilia Zankina
Metrics
H-Index
i10 Index
Citation Counts
11
14
310
elite theory
East European studies
populism
civil service reform
gender representation
Rankings
Ranking Based On Selection: 19
Roselyn Hsueh
Metrics
H-Index
i10 Index
Citation Counts
8
8
691
Comparative Politics
Political Economy
Globalization
Regulation
Governance
Rankings
Ranking Based On Selection: 21
Heather Levi
Metrics
H-Index
i10 Index
Citation Counts
8
6
310
Rankings
Ranking Based On Selection: 22
Rabie Ramadan
Metrics
H-Index
i10 Index
Citation Counts
5
5
172
Traffic Flow Modeling and Simulation
Hyperbolic Conservation Laws
Numerical Differential Equations
Rankings
Ranking Based On Selection: 23
Hawley Fogg-Davis
Metrics
H-Index
i10 Index
Citation Counts
5
3
211
Gender and Sexuality
Feminist Theory
Discrimination Law
African American Political Theory
Rankings
Ranking Based On Selection: 24
Jasmine Clark
Metrics
H-Index
i10 Index
Citation Counts
5
2
46
Rankings
Ranking Based On Selection: 25
Natalie Tagge
Metrics
H-Index
i10 Index
Citation Counts
5
4
157
Rankings
Ranking Based On Selection: 26
Kristina De Voe
Metrics
H-Index
i10 Index
Citation Counts
5
4
125
Information literacy
scholarly communications
open education
Rankings
Ranking Based On Selection: 27
Michael Hooper
Metrics
H-Index
i10 Index
Citation Counts
5
4
103
Rankings
Ranking Based On Selection: 28
Abhit Bhandari
Metrics
H-Index
i10 Index
Citation Counts
4
3
83
political economy of development
African politics
inequality
institutions
Rankings
Ranking Based On Selection: 29
Nyron N Crawford
Metrics
H-Index
i10 Index
Citation Counts
4
2
115
Political Psychology
Black Politics
Urban Politics
Policy Studies
Public Opinion
Rankings
Ranking Based On Selection: 30
Margaret Janz
Metrics
H-Index
i10 Index
Citation Counts
3
2
73
Library Science
Scholarly Communication
Science Communication
Research Data Management
Information Literacy
Rankings
Ranking Based On Selection: 31
Paul Nadeau
Metrics
H-Index
i10 Index
Citation Counts
3
0
13
International relations
International governance
US-Japan relations
East Asia
Rankings
Ranking Based On Selection: 32
Alistair Howard
Metrics
H-Index
i10 Index
Citation Counts
3
0
19
Rankings
Ranking Based On Selection: 33
Anurag Jain
Metrics
H-Index
i10 Index
Citation Counts
1
1
15
political science
electoral systems
party systems
voting behavior
Rankings
Ranking Based On Selection: 34
Gretchen Sneff
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
library science
scholarly communication
research data management
science communication
Rankings
Ranking Based On Selection: 35
James Frick
Metrics
H-Index
i10 Index
Citation Counts
1
0
1