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" (873,690 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
George Asimellis
Optics
signal processing
laser eye surgery
contact lenses
laser-induced breakdown spectroscopy
Metrics
H-Index
i10 Index
Citation
36
66
3,568
* Rankings
Ranking Based On Selection: 2
Muhammad Nabeel Ghayur
Medicinal Plant Research
Smooth Muscle Physiology
Autonomic Pharmacology
Ca2+ Channels
Metrics
H-Index
i10 Index
Citation
36
48
4,597
* Rankings
Ranking Based On Selection: 5
Eric Werth
Open Education
Open Educational Resources
Online Learning
Increasing Teaching Effectiveness
Metrics
H-Index
i10 Index
Citation
13
14
671
Katherine Williams
Open Pedagogy
Decolonizing Pedagogy
Queer Studies
Critical Pedagogy
Metrics
H-Index
i10 Index
Citation
6
5
132

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Praveen Kumar Guraja
Information Technology
Data Analytics
Machine Learning
Artificial Intelligence
Metrics
H-Index
i10 Index
Citation
2
1
13
Rankings
Ranking Based On Selection: 1
George Asimellis
Metrics
H-Index
i10 Index
Citation Counts
36
66
3,568
Optics
signal processing
laser eye surgery
contact lenses
laser-induced breakdown spectroscopy
Rankings
Ranking Based On Selection: 2
Muhammad Nabeel Ghayur
Metrics
H-Index
i10 Index
Citation Counts
36
48
4,597
Medicinal Plant Research
Smooth Muscle Physiology
Autonomic Pharmacology
Ca2+ Channels
Rankings
Ranking Based On Selection: 3
Lewis J Watson
Metrics
H-Index
i10 Index
Citation Counts
16
16
1,814
Rankings
Ranking Based On Selection: 4
Kartick C Pramanik M Pharm
Metrics
H-Index
i10 Index
Citation Counts
15
23
1,529
Rankings
Ranking Based On Selection: 5
Eric Werth
Metrics
H-Index
i10 Index
Citation Counts
13
14
671
Open Education
Open Educational Resources
Online Learning
Increasing Teaching Effectiveness
Rankings
Ranking Based On Selection: 6
Shumaila Hanif
Metrics
H-Index
i10 Index
Citation Counts
13
15
540
Rankings
Ranking Based On Selection: 7
Taylor Reardon
Metrics
H-Index
i10 Index
Citation Counts
10
11
307
Rankings
Ranking Based On Selection: 8
Katherine Williams
Metrics
H-Index
i10 Index
Citation Counts
6
5
132
Open Pedagogy
Decolonizing Pedagogy
Queer Studies
Critical Pedagogy
Rankings
Ranking Based On Selection: 9
Tauna Gulley
Metrics
H-Index
i10 Index
Citation Counts
6
5
174
Rankings
Ranking Based On Selection: 10
Jesson Martin
Metrics
H-Index
i10 Index
Citation Counts
6
4
492

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Rankings
Ranking Based On Selection: 11
Praveen Kumar Guraja
Metrics
H-Index
i10 Index
Citation Counts
2
1
13
Information Technology
Data Analytics
Machine Learning
Artificial Intelligence
Rankings
Ranking Based On Selection: 12
Royale Lim
Metrics
H-Index
i10 Index
Citation Counts
1
0
5