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
Ivan Rusyn
Toxicology
Computational toxicology
Risk assessment
Metrics
H-Index
i10 Index
Citation
88
277
35,969
* Rankings
Ranking Based On Selection :2
Robert Burghardt
Reproductive Biology
Reproduction
Toxicology
Microscopy
Metrics
H-Index
i10 Index
Citation
88
266
25,377
* Rankings
Ranking Based On Selection :3
Jan Suchodolski
Veterinary Microbiome
Veterinary_microbiology
Veterinary_medicine
probiotics
One_health
Metrics
H-Index
i10 Index
Citation
76
319
21,714
Leslie Garry Adams
Infectious diseases
vaccines
diagnostics
bacterial pathogens
Metrics
H-Index
i10 Index
Citation
67
214
18,326
Weihsueh A Chiu
Risk Assessment
Toxicology
Computational Toxicology
Public Health
Bayesian Statistics
Metrics
H-Index
i10 Index
Citation
48
121
6,434
H Morgan Scott
Veterinary Epidemiology
Antimicrobial Resistance
Foodborne Pathogens
Microbial Ecology
Molecular Epidemiology
Metrics
H-Index
i10 Index
Citation
44
125
6,824
Sarah A Hamer
One Health
Wildlife and Vector-borne Disease Ecology and Epidemiology
Metrics
H-Index
i10 Index
Citation
41
102
5,672
* Rankings
Ranking Based On Selection :14
Albert Mulenga
Tick feeding physiology
vaccine development against tick borne diseases
Metrics
H-Index
i10 Index
Citation
36
71
3,496
* Rankings
Ranking Based On Selection :17
Margaret Foster
systematic review methods
information retrieval
public health
social sciences
veterinary
Metrics
H-Index
i10 Index
Citation
31
53
3,743
* Rankings
Ranking Based On Selection :18
Ashley Saunders
Veterinary Cardiology
Congenital heart disease
Advanced imaging
Innovative teaching
Metrics
H-Index
i10 Index
Citation
30
62
2,955
* Rankings
Ranking Based On Selection :19
Kiril M Dimitrov
Veterinary Microbiology
Veterinary diagnostics
Molecular biology
Next-generation sequencing
Metrics
H-Index
i10 Index
Citation
27
45
2,709
Guilherme Verocai
Veterinary Parasitology
Zoonoses and Public Health
Emerging Diseases
Wildlife Health
Vector-borne diseases
Metrics
H-Index
i10 Index
Citation
25
56
2,106
Christopher Seabury
Population and Quantitative Genetics
Conservation Genetics
Infectious Disease
Animal Disease Genomics
Wildlife & Fisheries S
Metrics
H-Index
i10 Index
Citation
25
34
2,990
Rachel Curtis
Chagas disease
epidemiology
disease ecology
vector-borne diseases
Metrics
H-Index
i10 Index
Citation
18
24
1,367
Jennifer A Schleining
Large Animal Surgery
Surgical Biology
Veterinary Medical Education
Veterinary History
ISU-VDPAM
Metrics
H-Index
i10 Index
Citation
15
20
748
Naomi Ohta
Veterinary Epidemiology
Antibiotic resistant bacteria
Salmonella
stem cell research
Metrics
H-Index
i10 Index
Citation
15
18
1,081
Gus A Wright
Flow Cytometry
Microscopy
Cell Biology
Biochemistry
Microfluidics
Metrics
H-Index
i10 Index
Citation
15
16
731
Owais Ahmed Khan
Diagnostic Veterinary Microbiology
Avian influenza
Marek's Disease
Recombinant Vaccine
Metrics
H-Index
i10 Index
Citation
12
14
487
Rankings
Ranking Based On Selection: 1
Ivan Rusyn
Metrics
H-Index
i10 Index
Citation Counts
88
277
35,969
Rankings
Ranking Based On Selection: 2
Robert Burghardt
Metrics
H-Index
i10 Index
Citation Counts
88
266
25,377
Reproductive Biology
Reproduction
Toxicology
Microscopy
Rankings
Ranking Based On Selection: 3
Jan Suchodolski
Metrics
H-Index
i10 Index
Citation Counts
76
319
21,714
Veterinary Microbiome
Veterinary_microbiology
Veterinary_medicine
probiotics
One_health
Rankings
Ranking Based On Selection: 4
Leslie Garry Adams
Metrics
H-Index
i10 Index
Citation Counts
67
214
18,326
Infectious diseases
vaccines
diagnostics
bacterial pathogens
Rankings
Ranking Based On Selection: 5
Joe Kornegay
Metrics
H-Index
i10 Index
Citation Counts
54
167
9,796
Rankings
Ranking Based On Selection: 6
Weihsueh A Chiu
Metrics
H-Index
i10 Index
Citation Counts
48
121
6,434
Risk Assessment
Toxicology
Computational Toxicology
Public Health
Bayesian Statistics
Rankings
Ranking Based On Selection: 7
Roy R Pool Jr
Metrics
H-Index
i10 Index
Citation Counts
47
146
7,830
Rankings
Ranking Based On Selection: 8
H Morgan Scott
Metrics
H-Index
i10 Index
Citation Counts
44
125
6,824
Veterinary Epidemiology
Antimicrobial Resistance
Foodborne Pathogens
Microbial Ecology
Molecular Epidemiology
Rankings
Ranking Based On Selection: 9
Sarah A Hamer
Metrics
H-Index
i10 Index
Citation Counts
41
102
5,672
One Health
Wildlife and Vector-borne Disease Ecology and Epidemiology
Rankings
Ranking Based On Selection: 10
Phillip E Kaufman
Metrics
H-Index
i10 Index
Citation Counts
38
102
4,392
Rankings
Ranking Based On Selection: 11
Sonya G Gordon
Metrics
H-Index
i10 Index
Citation Counts
38
66
4,904
Rankings
Ranking Based On Selection: 12
Louise Abbott
Metrics
H-Index
i10 Index
Citation Counts
38
76
4,138
Rankings
Ranking Based On Selection: 13
Allen Roussel
Metrics
H-Index
i10 Index
Citation Counts
37
77
4,494
Rankings
Ranking Based On Selection: 14
Albert Mulenga
Metrics
H-Index
i10 Index
Citation Counts
36
71
3,496
Tick feeding physiology
vaccine development against tick borne diseases
Rankings
Ranking Based On Selection: 15
Brian W Davis
Metrics
H-Index
i10 Index
Citation Counts
34
59
4,562
Rankings
Ranking Based On Selection: 16
Mike Criscitiello
Metrics
H-Index
i10 Index
Citation Counts
32
55
3,400
Rankings
Ranking Based On Selection: 17
Margaret Foster
Metrics
H-Index
i10 Index
Citation Counts
31
53
3,743
systematic review methods
information retrieval
public health
social sciences
veterinary
Rankings
Ranking Based On Selection: 18
Ashley Saunders
Metrics
H-Index
i10 Index
Citation Counts
30
62
2,955
Veterinary Cardiology
Congenital heart disease
Advanced imaging
Innovative teaching
Rankings
Ranking Based On Selection: 19
Kiril M Dimitrov
Metrics
H-Index
i10 Index
Citation Counts
27
45
2,709
Veterinary Microbiology
Veterinary diagnostics
Molecular biology
Next-generation sequencing
Rankings
Ranking Based On Selection: 20
Brian F Porter
Metrics
H-Index
i10 Index
Citation Counts
27
51
2,227
Rankings
Ranking Based On Selection: 21
Raquel Rech
Metrics
H-Index
i10 Index
Citation Counts
27
63
2,278
Rankings
Ranking Based On Selection: 22
Guilherme Verocai
Metrics
H-Index
i10 Index
Citation Counts
25
56
2,106
Veterinary Parasitology
Zoonoses and Public Health
Emerging Diseases
Wildlife Health
Vector-borne diseases
Rankings
Ranking Based On Selection: 23
Christopher Seabury
Metrics
H-Index
i10 Index
Citation Counts
25
34
2,990
Population and Quantitative Genetics
Conservation Genetics
Infectious Disease
Animal Disease Genomics
Wildlife & Fisheries S
Rankings
Ranking Based On Selection: 24
Rachel Pilla
Metrics
H-Index
i10 Index
Citation Counts
24
41
2,241
Rankings
Ranking Based On Selection: 25
Ashlee Watts
Metrics
H-Index
i10 Index
Citation Counts
24
39
1,727
Rankings
Ranking Based On Selection: 26
Audrey K Cook
Metrics
H-Index
i10 Index
Citation Counts
24
36
2,372
Rankings
Ranking Based On Selection: 27
Virginia Fajt
Metrics
H-Index
i10 Index
Citation Counts
22
50
1,646
Rankings
Ranking Based On Selection: 28
Kelley Thieman Mankin
Metrics
H-Index
i10 Index
Citation Counts
20
35
1,335
Rankings
Ranking Based On Selection: 29
Haili Zhang
Metrics
H-Index
i10 Index
Citation Counts
20
23
927
Rankings
Ranking Based On Selection: 30
Sarah N Sampson
Metrics
H-Index
i10 Index
Citation Counts
19
23
925
Rankings
Ranking Based On Selection: 31
Rachel Curtis
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,367
Chagas disease
epidemiology
disease ecology
vector-borne diseases
Rankings
Ranking Based On Selection: 32
Jennifer A Schleining
Metrics
H-Index
i10 Index
Citation Counts
15
20
748
Large Animal Surgery
Surgical Biology
Veterinary Medical Education
Veterinary History
ISU-VDPAM
Rankings
Ranking Based On Selection: 33
Naomi Ohta
Metrics
H-Index
i10 Index
Citation Counts
15
18
1,081
Veterinary Epidemiology
Antibiotic resistant bacteria
Salmonella
stem cell research
Rankings
Ranking Based On Selection: 34
Gus A Wright
Metrics
H-Index
i10 Index
Citation Counts
15
16
731
Flow Cytometry
Microscopy
Cell Biology
Biochemistry
Microfluidics
Rankings
Ranking Based On Selection: 35
Owais Ahmed Khan
Metrics
H-Index
i10 Index
Citation Counts
12
14
487
Diagnostic Veterinary Microbiology
Avian influenza
Marek's Disease
Recombinant Vaccine
Rankings
Ranking Based On Selection: 36
Alison Diesel
Metrics
H-Index
i10 Index
Citation Counts
11
12
891
Rankings
Ranking Based On Selection: 37
Courtney Baetge
Metrics
H-Index
i10 Index
Citation Counts
8
6
193
Rankings
Ranking Based On Selection: 38
Joseph Knue
Metrics
H-Index
i10 Index
Citation Counts
2
2
158
Rankings
Ranking Based On Selection: 39
Jessica D Monday
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Rankings
Ranking Based On Selection: 40
Brandon Lyons
Metrics
H-Index
i10 Index
Citation Counts
1
1
23