World

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 rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,121,299 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

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Total 27 scientist
* Total H Index Rankings

Rankings

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23,810
World Rank
South Africa
76
Country Rank
South African Medical Research Council Logo
2
University
Ranking Based On Selection:
1
Debbie Bradshaw
South African Medical Research Council Cape Town, South Africa
Others

H-Index Metrics

  • H-Index
    78
  • i10 Index
    231
  • Citation Counts
    26,182
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* Total H Index Rankings

Rankings

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58,654
World Rank
South Africa
189
Country Rank
South African Medical Research Council Logo
3
University
Ranking Based On Selection:
2
Catherine Mathews
South African Medical Research Council Cape Town, South Africa
Others
Healt

H-Index Metrics

  • H-Index
    58
  • i10 Index
    196
  • Citation Counts
    10,695
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* Total H Index Rankings

Rankings

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69,915
World Rank
South Africa
230
Country Rank
South African Medical Research Council Logo
5
University
Ranking Based On Selection:
3
Arvin Bhana
South African Medical Research Council Cape Town, South Africa
Others
mental health | HIV | children and adolescence | family resilience | substance us

H-Index Metrics

  • H-Index
    54
  • i10 Index
    124
  • Citation Counts
    10,497
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* Total H Index Rankings

Rankings

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71,386
World Rank
South Africa
237
Country Rank
South African Medical Research Council Logo
6
University
Ranking Based On Selection:
4
Gita Ramjee
South African Medical Research Council Cape Town, South Africa
Others
HIV Prevention | epidemiology | basic science | socio-behavioural scienc

H-Index Metrics

  • H-Index
    54
  • i10 Index
    160
  • Citation Counts
    14,515
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* Total H Index Rankings

Rankings

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155,280
World Rank
South Africa
653
Country Rank
South African Medical Research Council Logo
10
University
Ranking Based On Selection:
5
Angela Mathee
South African Medical Research Council Cape Town, South Africa
Others
lead exposure | environmental healt

H-Index Metrics

  • H-Index
    39
  • i10 Index
    118
  • Citation Counts
    4,581
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* Total H Index Rankings

Rankings

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243,193
World Rank
South Africa
1,124
Country Rank
South African Medical Research Council Logo
15
University
Ranking Based On Selection:
6
Tamara Kredo
South African Medical Research Council Cape Town, South Africa
Others

H-Index Metrics

  • H-Index
    31
  • i10 Index
    71
  • Citation Counts
    4,854
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* Total H Index Rankings

Rankings

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264,110
World Rank
South Africa
1,271
Country Rank
South African Medical Research Council Logo
18
University
Ranking Based On Selection:
7
Ashley Van Niekerk
South African Medical Research Council Cape Town, South Africa
Others
burns | child safety | community safet

H-Index Metrics

  • H-Index
    30
  • i10 Index
    63
  • Citation Counts
    4,631
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* Total H Index Rankings

Rankings

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267,991
World Rank
South Africa
1,292
Country Rank
South African Medical Research Council Logo
19
University
Ranking Based On Selection:
8
Duduzile Ndwandwe
South African Medical Research Council Cape Town, South Africa
Others
vaccinology | HIV | TB | vaccine implementation researc

H-Index Metrics

  • H-Index
    29
  • i10 Index
    53
  • Citation Counts
    9,582
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* Total H Index Rankings

Rankings

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332,836
World Rank
South Africa
1,647
Country Rank
South African Medical Research Council Logo
22
University
Ranking Based On Selection:
9
Marian Loveday
South African Medical Research Council Cape Town, South Africa
Others
TB | RR-TB | HI

H-Index Metrics

  • H-Index
    26
  • i10 Index
    48
  • Citation Counts
    2,485
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* Total H Index Rankings

Rankings

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338,007
World Rank
South Africa
1,678
Country Rank
South African Medical Research Council Logo
23
University
Ranking Based On Selection:
10
Karen Daniels
South African Medical Research Council Cape Town, South Africa
Others
healt

H-Index Metrics

  • H-Index
    26
  • i10 Index
    41
  • Citation Counts
    5,106
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* Total H Index Rankings

Rankings

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401,050
World Rank
South Africa
2,064
Country Rank
South African Medical Research Council Logo
27
University
Ranking Based On Selection:
11
Marlon E Cerf
South African Medical Research Council Cape Town, South Africa
Others
Cardiovascular disease | Developmental programming | Diabetes | Global health | Nutritio

H-Index Metrics

  • H-Index
    23
  • i10 Index
    32
  • Citation Counts
    2,772
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* Total H Index Rankings

Rankings

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576,558
World Rank
South Africa
3,108
Country Rank
South African Medical Research Council Logo
35
University
Ranking Based On Selection:
12
Wisdom Basera
South African Medical Research Council Cape Town, South Africa
Others
Burden of Diseas

H-Index Metrics

  • H-Index
    17
  • i10 Index
    25
  • Citation Counts
    1,029
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* Total H Index Rankings

Rankings

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661,811
World Rank
South Africa
3,641
Country Rank
South African Medical Research Council Logo
37
University
Ranking Based On Selection:
13
Carrie Brooke-Sumner
South African Medical Research Council Cape Town, South Africa
Others
Mental health interventions | recover

H-Index Metrics

  • H-Index
    15
  • i10 Index
    17
  • Citation Counts
    2,373
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* Total H Index Rankings

Rankings

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675,454
World Rank
South Africa
3,743
Country Rank
South African Medical Research Council Logo
41
University
Ranking Based On Selection:
14
Cindy George
South African Medical Research Council Cape Town, South Africa
Others
medical research | epidemiology | non-communicable diseases | chronic kidney diseas

H-Index Metrics

  • H-Index
    15
  • i10 Index
    18
  • Citation Counts
    870
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* Total H Index Rankings

Rankings

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684,916
World Rank
South Africa
3,805
Country Rank
South African Medical Research Council Logo
42
University
Ranking Based On Selection:
15
Sebenzile (Sebe) Nkosi
South African Medical Research Council Cape Town, South Africa
Others
Men and masculinities | substance use | violence | HI

H-Index Metrics

  • H-Index
    15
  • i10 Index
    15
  • Citation Counts
    640
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* Total H Index Rankings

Rankings

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698,002
World Rank
South Africa
3,886
Country Rank
South African Medical Research Council Logo
43
University
Ranking Based On Selection:
16
Louise Renton
South African Medical Research Council Cape Town, South Africa
Others
bone researc

H-Index Metrics

  • H-Index
    15
  • i10 Index
    18
  • Citation Counts
    1,337
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* Total H Index Rankings

Rankings

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719,861
World Rank
South Africa
4,004
Country Rank
South African Medical Research Council Logo
45
University
Ranking Based On Selection:
17
Nomonde Gwebushe
South African Medical Research Council Cape Town, South Africa
Others

H-Index Metrics

  • H-Index
    14
  • i10 Index
    14
  • Citation Counts
    1,540
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* Total H Index Rankings

Rankings

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756,653
World Rank
South Africa
4,271
Country Rank
South African Medical Research Council Logo
47
University
Ranking Based On Selection:
18
Eunice Turawa
South African Medical Research Council Cape Town, South Africa
Others
Maternal and child health | Epidemiology and burden of disease | Health system

H-Index Metrics

  • H-Index
    13
  • i10 Index
    17
  • Citation Counts
    686
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* Total H Index Rankings

Rankings

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781,325
World Rank
South Africa
4,437
Country Rank
South African Medical Research Council Logo
48
University
Ranking Based On Selection:
19
Naiema Taliep
South African Medical Research Council Cape Town, South Africa
Others
Community engagement | Community-based participatory action research | violence prevention | intervention development | safety and

H-Index Metrics

  • H-Index
    13
  • i10 Index
    15
  • Citation Counts
    412
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* Total H Index Rankings

Rankings

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847,138
World Rank
South Africa
4,872
Country Rank
South African Medical Research Council Logo
50
University
Ranking Based On Selection:
20
Brodie Daniels
South African Medical Research Council Cape Town, South Africa
Others

H-Index Metrics

  • H-Index
    12
  • i10 Index
    12
  • Citation Counts
    1,000
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* Total H Index Rankings

Rankings

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934,929
World Rank
South Africa
5,561
Country Rank
South African Medical Research Council Logo
52
University
Ranking Based On Selection:
21
Anesh Sukhai
South African Medical Research Council Cape Town, South Africa
Others

H-Index Metrics

  • H-Index
    11
  • i10 Index
    12
  • Citation Counts
    456
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* Total H Index Rankings

Rankings

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970,390
World Rank
South Africa
5,788
Country Rank
South African Medical Research Council Logo
54
University
Ranking Based On Selection:
22
Busisiwe Shezi
South African Medical Research Council Cape Town, South Africa
Others
Exposure assessmen

H-Index Metrics

  • H-Index
    10
  • i10 Index
    10
  • Citation Counts
    253
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* Total H Index Rankings

Rankings

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977,473
World Rank
South Africa
5,872
Country Rank
South African Medical Research Council Logo
55
University
Ranking Based On Selection:
23
Zamantimande Kunene
South African Medical Research Council Cape Town, South Africa
Others
Environmental Healt

H-Index Metrics

  • H-Index
    10
  • i10 Index
    11
  • Citation Counts
    277
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* Total H Index Rankings

Rankings

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1,033,716
World Rank
South Africa
6,329
Country Rank
South African Medical Research Council Logo
56
University
Ranking Based On Selection:
24
Samukelisiwe Shabalala
South African Medical Research Council Cape Town, South Africa
Others

H-Index Metrics

  • H-Index
    9
  • i10 Index
    9
  • Citation Counts
    613
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* Total H Index Rankings

Rankings

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1,382,733
World Rank
South Africa
9,104
Country Rank
South African Medical Research Council Logo
61
University
Ranking Based On Selection:
25
Yoonus Abrahams
South African Medical Research Council Cape Town, South Africa
Others

H-Index Metrics

  • H-Index
    6
  • i10 Index
    6
  • Citation Counts
    468
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