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" (873,863 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
Todd R Callaway
Ruminal Microbiology
Ruminant Nutrition
Food Safety
Bacterial Physiology
Animal Science
Metrics
H-Index
i10 Index
Citation
64
233
15,624
James Stanton
Veterinary medicine
prions
next-generation sequencing
anatomic pathology
Metrics
H-Index
i10 Index
Citation
21
33
1,187
Kathern Myrna, Dvm, Ms, Dacvo
Veterinary Ophthalmology
Corneal Wound Healing
Tear Cortisol Dynamics
Pigmentary Keratopathy
Ocular Analgesia
Metrics
H-Index
i10 Index
Citation
11
11
617
Sasikala Vaddu
Veterinary medicine
Microbiology
Poultry food safety
Molecular techniques
Metrics
H-Index
i10 Index
Citation
6
5
129
Rankings
Ranking Based On Selection: 1
Todd R Callaway
Metrics
H-Index
i10 Index
Citation Counts
64
233
15,624
Ruminal Microbiology
Ruminant Nutrition
Food Safety
Bacterial Physiology
Animal Science
Rankings
Ranking Based On Selection: 2
James Stanton
Metrics
H-Index
i10 Index
Citation Counts
21
33
1,187
Veterinary medicine
prions
next-generation sequencing
anatomic pathology
Rankings
Ranking Based On Selection: 3
Monique Franca
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,181
Rankings
Ranking Based On Selection: 4
Silvia Carnaccini, Dvm, Acpv, Acvp
Metrics
H-Index
i10 Index
Citation Counts
14
20
605
Rankings
Ranking Based On Selection: 5
Robson F Giglio
Metrics
H-Index
i10 Index
Citation Counts
13
15
619
Rankings
Ranking Based On Selection: 6
Randy Eggleston
Metrics
H-Index
i10 Index
Citation Counts
12
15
350
Rankings
Ranking Based On Selection: 7
Kathern Myrna, Dvm, Ms, Dacvo
Metrics
H-Index
i10 Index
Citation Counts
11
11
617
Veterinary Ophthalmology
Corneal Wound Healing
Tear Cortisol Dynamics
Pigmentary Keratopathy
Ocular Analgesia
Rankings
Ranking Based On Selection: 8
Eliana De Luca
Metrics
H-Index
i10 Index
Citation Counts
8
8
195
Rankings
Ranking Based On Selection: 9
Sasikala Vaddu
Metrics
H-Index
i10 Index
Citation Counts
6
5
129
Veterinary medicine
Microbiology
Poultry food safety
Molecular techniques