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" (870,053 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: 2
James Patrick Mckenna
Microbiology
rapid molecular diagnostics
NGS
Metrics
H-Index
i10 Index
Citation
32
54
6,026
* Rankings
Ranking Based On Selection: 5
Gerry Hanna
Lung Cancer
Breast Cancer
Radiotherapy
Metrics
H-Index
i10 Index
Citation
27
70
3,178
* Rankings
Ranking Based On Selection: 7
Andrew Ferguson
intensive care
perioperative medicine
echocardiography
burnout
wellbeing
Metrics
H-Index
i10 Index
Citation
14
14
2,023
* Rankings
Ranking Based On Selection: 9
Jackie Casey
Seating
Positioning
Children
Evidence based practice
Metrics
H-Index
i10 Index
Citation
12
14
541

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* Rankings
Ranking Based On Selection: 11
Peter Cosgrove
Pediatric Emergency Medicine
Respiratory Disease
Translational Reserach
Simulation
Metrics
H-Index
i10 Index
Citation
5
3
91
Rankings
Ranking Based On Selection: 1
Stephen O'Neill
Metrics
H-Index
i10 Index
Citation Counts
40
76
5,464
Rankings
Ranking Based On Selection: 2
James Patrick Mckenna
Metrics
H-Index
i10 Index
Citation Counts
32
54
6,026
Microbiology
rapid molecular diagnostics
NGS
Rankings
Ranking Based On Selection: 3
Denis W Harkin
Metrics
H-Index
i10 Index
Citation Counts
31
61
4,786
Rankings
Ranking Based On Selection: 4
Rankings
Ranking Based On Selection: 5
Gerry Hanna
Metrics
H-Index
i10 Index
Citation Counts
27
70
3,178
Lung Cancer
Breast Cancer
Radiotherapy
Rankings
Ranking Based On Selection: 6
John R Lindsay
Metrics
H-Index
i10 Index
Citation Counts
23
31
4,132
Diabetes & endocrinology
Metabolic bone disease
Osteoporosis
Rankings
Ranking Based On Selection: 7
Andrew Ferguson
Metrics
H-Index
i10 Index
Citation Counts
14
14
2,023
intensive care
perioperative medicine
echocardiography
burnout
wellbeing
Rankings
Ranking Based On Selection: 8
Firas Aljanadi
Metrics
H-Index
i10 Index
Citation Counts
12
13
3,384
Rankings
Ranking Based On Selection: 9
Jackie Casey
Metrics
H-Index
i10 Index
Citation Counts
12
14
541
Seating
Positioning
Children
Evidence based practice

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Peter Cosgrove
Metrics
H-Index
i10 Index
Citation Counts
5
3
91
Pediatric Emergency Medicine
Respiratory Disease
Translational Reserach
Simulation