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: 1
Valerie Ehlers
Health-related research
postgraduate nursing education
public health issues
Metrics
H-Index
i10 Index
Citation
28
57
2,107
* Rankings
Ranking Based On Selection: 2
Henry Joseph Oduor Ogola
Biotechnology
Microbiology
Metagenomics
Bioinformatics
Metrics
H-Index
i10 Index
Citation
21
31
1,903
* Rankings
Ranking Based On Selection: 3
Christian Mbajiorgu
Animal production
poultry nutrition
gut physiology of poultry
Metrics
H-Index
i10 Index
Citation
21
42
1,377
* Rankings
Ranking Based On Selection: 5
Azwihangwisi Mavhandu-Mudzusi
HIV/AIDS
LGBTIQ+
Sexual diversity
rural community
HIV serodiscordancy
Metrics
H-Index
i10 Index
Citation
19
29
1,193
* Rankings
Ranking Based On Selection: 6
Lindiwe Zungu
Occupational health
medicine and safety
Public health
Nursing
Primary health care
Metrics
H-Index
i10 Index
Citation
15
27
1,299
* Rankings
Ranking Based On Selection: 9
Samantha Gildenhuys
Protein Biochemistry
Viral capsid proteins
Spectroscopy
Molecular docking
Ligand binding
Metrics
H-Index
i10 Index
Citation
12
17
379
* Rankings
Ranking Based On Selection: 10
Salerwe Mosebi
Protein Biochemistry
Drug Discovery
HIV
Cancer
Diagnostics
Metrics
H-Index
i10 Index
Citation
12
15
377

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* Rankings
Ranking Based On Selection: 16
Siyabulela Mgolozeli
Gender-Based Violence
Men's Health
Nursing
LGBTQIA+ Health
Sexual & Reproductive Health
Metrics
H-Index
i10 Index
Citation
7
7
135
* Rankings
Ranking Based On Selection: 19
Dd Mphuthi
Nephrology nursing
Mens health
Health Services management
Nursing
Metrics
H-Index
i10 Index
Citation
7
3
113
* Rankings
Ranking Based On Selection: 22
Lyness Matizirofa
public health
biostatistics
applied statistics
quantile regression
meta-analysis
Metrics
H-Index
i10 Index
Citation
6
5
277
Kholofelo Lorraine Matlhaba
Health Sciences Education
Public Health
Indigenous Knowledge Systems
Metrics
H-Index
i10 Index
Citation
5
2
91
Maggi Linington
Biochemistry
metabolism
metabolomics
livestock
nutrition
Metrics
H-Index
i10 Index
Citation
5
2
66
Vhothusa Edward Matahela
nurse education leadership
retention
self-leadership
resilience
humanizing pedagogies
Metrics
H-Index
i10 Index
Citation
4
1
58
Itumeleng Setshedi
Cell biology
Phytochemistry
Pharmaceutical Drug Design
Medical Virology
Molecular Biology
Metrics
H-Index
i10 Index
Citation
3
2
64
Christelle Boersema
implementation science
knowledge translation
aged care
community nursing
wound care
Metrics
H-Index
i10 Index
Citation
3
2
53
David E Cook
Forensic Science Education
Injury Causation
Medical Malpractice
Metrics
H-Index
i10 Index
Citation
1
0
2
Rankings
Ranking Based On Selection: 1
Valerie Ehlers
Metrics
H-Index
i10 Index
Citation Counts
28
57
2,107
Health-related research
postgraduate nursing education
public health issues
Rankings
Ranking Based On Selection: 2
Henry Joseph Oduor Ogola
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,903
Biotechnology
Microbiology
Metagenomics
Bioinformatics
Rankings
Ranking Based On Selection: 3
Christian Mbajiorgu
Metrics
H-Index
i10 Index
Citation Counts
21
42
1,377
Animal production
poultry nutrition
gut physiology of poultry
Rankings
Ranking Based On Selection: 4
Stephen Meddows-Taylor
Metrics
H-Index
i10 Index
Citation Counts
20
29
1,450
Rankings
Ranking Based On Selection: 5
Azwihangwisi Mavhandu-Mudzusi
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,193
HIV/AIDS
LGBTIQ+
Sexual diversity
rural community
HIV serodiscordancy
Rankings
Ranking Based On Selection: 6
Lindiwe Zungu
Metrics
H-Index
i10 Index
Citation Counts
15
27
1,299
Occupational health
medicine and safety
Public health
Nursing
Primary health care
Rankings
Ranking Based On Selection: 7
Monde Ntwasa
Metrics
H-Index
i10 Index
Citation Counts
14
17
730
Rankings
Ranking Based On Selection: 8
Olusola Bodede
Metrics
H-Index
i10 Index
Citation Counts
13
14
579
Rankings
Ranking Based On Selection: 9
Samantha Gildenhuys
Metrics
H-Index
i10 Index
Citation Counts
12
17
379
Protein Biochemistry
Viral capsid proteins
Spectroscopy
Molecular docking
Ligand binding
Rankings
Ranking Based On Selection: 10
Salerwe Mosebi
Metrics
H-Index
i10 Index
Citation Counts
12
15
377
Protein Biochemistry
Drug Discovery
HIV
Cancer
Diagnostics

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
Sibusiso Malindisa
Metrics
H-Index
i10 Index
Citation Counts
11
11
429
Rankings
Ranking Based On Selection: 12
Juan Scheun
Metrics
H-Index
i10 Index
Citation Counts
10
10
240
Rankings
Ranking Based On Selection: 13
Mokgadi Matlakala
Metrics
H-Index
i10 Index
Citation Counts
10
10
333
Rankings
Ranking Based On Selection: 14
Elizabeth Anna Symington
Metrics
H-Index
i10 Index
Citation Counts
8
8
430
Rankings
Ranking Based On Selection: 15
Hester C (Rina) De Swardt
Metrics
H-Index
i10 Index
Citation Counts
8
7
307
Reflection
Nursing education
professional socialisation
Rankings
Ranking Based On Selection: 16
Siyabulela Mgolozeli
Metrics
H-Index
i10 Index
Citation Counts
7
7
135
Gender-Based Violence
Men's Health
Nursing
LGBTQIA+ Health
Sexual & Reproductive Health
Rankings
Ranking Based On Selection: 17
Asmamaw Ketemaw Tsehay
Metrics
H-Index
i10 Index
Citation Counts
7
6
139
Rankings
Ranking Based On Selection: 18
Paschal Mujasi
Metrics
H-Index
i10 Index
Citation Counts
7
5
259
Rankings
Ranking Based On Selection: 19
Dd Mphuthi
Metrics
H-Index
i10 Index
Citation Counts
7
3
113
Nephrology nursing
Mens health
Health Services management
Nursing
Rankings
Ranking Based On Selection: 20
Azeb Lelisa
Metrics
H-Index
i10 Index
Citation Counts
6
5
498
Rankings
Ranking Based On Selection: 21
Andile Mthombeni
Metrics
H-Index
i10 Index
Citation Counts
6
5
201
Rankings
Ranking Based On Selection: 22
Lyness Matizirofa
Metrics
H-Index
i10 Index
Citation Counts
6
5
277
public health
biostatistics
applied statistics
quantile regression
meta-analysis
Rankings
Ranking Based On Selection: 23
Kholofelo Lorraine Matlhaba
Metrics
H-Index
i10 Index
Citation Counts
5
2
91
Health Sciences Education
Public Health
Indigenous Knowledge Systems
Rankings
Ranking Based On Selection: 26
Vincent Mzazi (Vincent Horner)
Metrics
H-Index
i10 Index
Citation Counts
5
1
73
e-health
public health medicine
epidemiology
information systems
Rankings
Ranking Based On Selection: 27
Maggi Linington
Metrics
H-Index
i10 Index
Citation Counts
5
2
66
Biochemistry
metabolism
metabolomics
livestock
nutrition
Rankings
Ranking Based On Selection: 28
Lerato Sekhohola
Metrics
H-Index
i10 Index
Citation Counts
4
4
168
Rankings
Ranking Based On Selection: 29
Fikadu Tadesse Nigusso
Metrics
H-Index
i10 Index
Citation Counts
4
4
114
Public Health
Medicine
Epidemiology
Nutrition
Food security
Rankings
Ranking Based On Selection: 30
Tshifhiwa Magoro
Metrics
H-Index
i10 Index
Citation Counts
4
3
121
Rankings
Ranking Based On Selection: 31
Vhothusa Edward Matahela
Metrics
H-Index
i10 Index
Citation Counts
4
1
58
nurse education leadership
retention
self-leadership
resilience
humanizing pedagogies
Rankings
Ranking Based On Selection: 32
Carine Prinsloo
Metrics
H-Index
i10 Index
Citation Counts
4
1
31
Rankings
Ranking Based On Selection: 33
Simangele Shakwane
Metrics
H-Index
i10 Index
Citation Counts
4
0
40
Rankings
Ranking Based On Selection: 34
Annah Mosalo
Metrics
H-Index
i10 Index
Citation Counts
3
3
73
Rankings
Ranking Based On Selection: 35
Thanyani Lumadi
Metrics
H-Index
i10 Index
Citation Counts
3
2
126
Rankings
Ranking Based On Selection: 36
Itumeleng Setshedi
Metrics
H-Index
i10 Index
Citation Counts
3
2
64
Cell biology
Phytochemistry
Pharmaceutical Drug Design
Medical Virology
Molecular Biology
Rankings
Ranking Based On Selection: 37
Christelle Boersema
Metrics
H-Index
i10 Index
Citation Counts
3
2
53
implementation science
knowledge translation
aged care
community nursing
wound care
Rankings
Ranking Based On Selection: 38
Dumisani Quiet Mabunda
Metrics
H-Index
i10 Index
Citation Counts
3
1
28
Rankings
Ranking Based On Selection: 40
Constance Matshidiso Lelaka
Metrics
H-Index
i10 Index
Citation Counts
2
0
13
HIV/AIDS
safer conception
public health
sexual reproductive health
gender
Rankings
Ranking Based On Selection: 43
Matildah Tshabalala
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
Rankings
Ranking Based On Selection: 44
Rixile Hlongwane
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
Rankings
Ranking Based On Selection: 45
David E Cook
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
Forensic Science Education
Injury Causation
Medical Malpractice
Rankings
Ranking Based On Selection: 46
Grace Tshilidzi Ravhura
Metrics
H-Index
i10 Index
Citation Counts
1
0
1