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H-Index
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South Africa 2,078 Scientists H-Index Natural Sciences Rankings - 2026

This real-time ranking measures researchers’ academic productivity and impact at global, continental, national, and institutional levels using total and recent 5-year H-index data. Comparative analysis is available across 13 main fields and 221 academic disciplines.

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Total 2.078 scientist, 1 country, 44 institution , Updates every 3 days
* Total H Index Rankings

Rankings

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298
World Rank
South Africa
1
Country Rank
University of Cape Town Logo
1
University
Ranking Based On Selection:
1
Sahal Yacoob
University of Cape Town Cape Town, South Africa
Natural Sciences / Physics
High Energy Particle Physic

H-Index Metrics

  • Total
    230
  • Last 5 Years
    151
  • Last 5 Years / Total
    0.657
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* Total H Index Rankings

Rankings

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744
World Rank
South Africa
3
Country Rank
University of Johannesburg Logo
1
University
Ranking Based On Selection:
2
Loan Truong
University of Johannesburg Johannesburg, South Africa
Natural Sciences / Physics
HEP | LHC | ATLA

H-Index Metrics

  • Total
    195
  • Last 5 Years
    150
  • Last 5 Years / Total
    0.769
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* Total H Index Rankings

Rankings

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1,109
World Rank
South Africa
4
Country Rank
University of the Witwatersrand Logo
1
University
Ranking Based On Selection:
3
Bruce Mellado
University of the Witwatersrand Johannesburg, South Africa
Natural Sciences / Physics
Particle Physic

H-Index Metrics

  • Total
    174
  • Last 5 Years
    120
  • Last 5 Years / Total
    0.690
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* Total H Index Rankings

Rankings

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1,558
World Rank
South Africa
5
Country Rank
Stellenbosch University Logo
1
University
Ranking Based On Selection:
4
David M. Richardson
Stellenbosch University Stellenbosch, South Africa
Natural Sciences / Biological Science
invasion ecology | invasion biology | invasion science | conservation biology | biological invasion

H-Index Metrics

  • Total
    159
  • Last 5 Years
    104
  • Last 5 Years / Total
    0.654
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* Total H Index Rankings

Rankings

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2,267
World Rank
South Africa
7
Country Rank
University of Cape Town Logo
3
University
Ranking Based On Selection:
5
Jean Cleymans
University of Cape Town Cape Town, South Africa
Natural Sciences / Physics
Physics | Thermal Models | particle Physic

H-Index Metrics

  • Total
    145
  • Last 5 Years
    111
  • Last 5 Years / Total
    0.766
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* Total H Index Rankings

Rankings

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2,746
World Rank
South Africa
8
Country Rank
University of Johannesburg Logo
2
University
Ranking Based On Selection:
6
Simon Connell
University of Johannesburg Johannesburg, South Africa
Natural Sciences / Physics
Nuclear Physics | Particle Physics | Diamond Physics | Quantum Physic

H-Index Metrics

  • Total
    139
  • Last 5 Years
    96
  • Last 5 Years / Total
    0.691
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* Total H Index Rankings

Rankings

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2,981
World Rank
South Africa
9
Country Rank
University of the Witwatersrand Logo
2
University
Ranking Based On Selection:
7
Joyful Mdhluli
University of the Witwatersrand Johannesburg, South Africa
Natural Sciences / Physics
Astronomy | Developmen

H-Index Metrics

  • Total
    136
  • Last 5 Years
    126
  • Last 5 Years / Total
    0.926
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* Total H Index Rankings

Rankings

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3,447
World Rank
South Africa
10
Country Rank
University of the Witwatersrand Logo
3
University
Ranking Based On Selection:
8
Zeblon Vilakazi
University of the Witwatersrand Johannesburg, South Africa
Natural Sciences / Physics
High Energy physics | Grid Computing

H-Index Metrics

  • Total
    131
  • Last 5 Years
    106
  • Last 5 Years / Total
    0.809
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* Total H Index Rankings

Rankings

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4,769
World Rank
South Africa
12
Country Rank
University of the Witwatersrand Logo
4
University
Ranking Based On Selection:
9
Robert J Scholes
University of the Witwatersrand Johannesburg, South Africa
Natural Sciences / Biological Science
carbon cycle | savannas | earth observation | biodiversit

H-Index Metrics

  • Total
    121
  • Last 5 Years
    79
  • Last 5 Years / Total
    0.653
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* Total H Index Rankings

Rankings

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4,992
World Rank
South Africa
13
Country Rank
Nelson Mandela University Logo
1
University
Ranking Based On Selection:
10
Richard M. Cowling
Nelson Mandela University Port Elizabeth, South Africa
Natural Sciences / Biological Science
Plant diversity and evolution | palaeovegetation science | conservation scienc

H-Index Metrics

  • Total
    120
  • Last 5 Years
    49
  • Last 5 Years / Total
    0.408
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* Total H Index Rankings

Rankings

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5,646
World Rank
South Africa
15
Country Rank
University of Cape Town Logo
4
University
Ranking Based On Selection:
11
William Bond
University of Cape Town Cape Town, South Africa
Natural Sciences / Biological Science
Ecology | evolutio

H-Index Metrics

  • Total
    116
  • Last 5 Years
    78
  • Last 5 Years / Total
    0.672
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* Total H Index Rankings

Rankings

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6,213
World Rank
South Africa
18
Country Rank
University of South Africa Logo
1
University
Ranking Based On Selection:
12
Eno E. Ebenso
University of South Africa Pretoria, South Africa
Natural Sciences / Chemical Sciences
corrosion | corrosion inhibition | corrosion of metals | adsorption | quantum chemical calculation

H-Index Metrics

  • Total
    113
  • Last 5 Years
    88
  • Last 5 Years / Total
    0.779
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* Total H Index Rankings

Rankings

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7,236
World Rank
South Africa
20
Country Rank
University of Kwazulu Natal Logo
1
University
Ranking Based On Selection:
13
Fernando Albericio
University of Kwazulu Natal Durban, South Africa
Natural Sciences / Chemical Sciences
medicinal chemistry | peptide

H-Index Metrics

  • Total
    109
  • Last 5 Years
    63
  • Last 5 Years / Total
    0.578
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* Total H Index Rankings

Rankings

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11,270
World Rank
South Africa
28
Country Rank
University of the Witwatersrand Logo
6
University
Ranking Based On Selection:
14
Nukri Komin
University of the Witwatersrand Johannesburg, South Africa
Natural Sciences / Physics
gamma-ray astronomy | Cosmic Ray

H-Index Metrics

  • Total
    97
  • Last 5 Years
    57
  • Last 5 Years / Total
    0.588
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* Total H Index Rankings

Rankings

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12,978
World Rank
South Africa
35
Country Rank
University of Johannesburg Logo
3
University
Ranking Based On Selection:
15
Soebur Razzaque
University of Johannesburg Johannesburg, South Africa
Natural Sciences / Physics
Astroparticle Physics | High Energy Astrophysics | Gamma-ray Astronom

H-Index Metrics

  • Total
    93
  • Last 5 Years
    65
  • Last 5 Years / Total
    0.699
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* Total H Index Rankings

Rankings

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14,266
World Rank
South Africa
38
Country Rank
University of the Western Cape Logo
1
University
Ranking Based On Selection:
16
Roy Maartens
University of the Western Cape Bellville, South Africa
Natural Sciences / Physics
Physic

H-Index Metrics

  • Total
    91
  • Last 5 Years
    47
  • Last 5 Years / Total
    0.516
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* Total H Index Rankings

Rankings

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14,608
World Rank
South Africa
39
Country Rank
University of Fort Hare Logo
1
University
Ranking Based On Selection:
17
AJ Afolayan
University of Fort Hare Alice, South Africa
Natural Sciences / Biological Science
Biological science | phytomedicine | botan

H-Index Metrics

  • Total
    90
  • Last 5 Years
    61
  • Last 5 Years / Total
    0.678
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* Total H Index Rankings

Rankings

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14,857
World Rank
South Africa
42
Country Rank
University of Cape Town Logo
16
University
Ranking Based On Selection:
18
George FR Ellis
University of Cape Town Cape Town, South Africa
Natural Sciences / Mathematical Sciences
Relativity | cosmology | complexit

H-Index Metrics

  • Total
    90
  • Last 5 Years
    47
  • Last 5 Years / Total
    0.522
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* Total H Index Rankings

Rankings

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15,026
World Rank
South Africa
43
Country Rank
University of the Witwatersrand Logo
8
University
Ranking Based On Selection:
19
Tasnuva Chowdhury
University of the Witwatersrand Johannesburg, South Africa
Natural Sciences / Physics
Particle Physic

H-Index Metrics

  • Total
    89
  • Last 5 Years
    83
  • Last 5 Years / Total
    0.933
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* Total H Index Rankings

Rankings

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15,381
World Rank
South Africa
45
Country Rank
University of Cape Town Logo
17
University
Ranking Based On Selection:
20
Mattia Vaccari
University of Cape Town Cape Town, South Africa
Natural Sciences / Physics
Astrophysics | Observational Optical/Infrared/Radio Galaxy Evolution | Cloud Computing | Machine Learning | Statistic

H-Index Metrics

  • Total
    89
  • Last 5 Years
    51
  • Last 5 Years / Total
    0.573
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* Total H Index Rankings

Rankings

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15,998
World Rank
South Africa
47
Country Rank
Stellenbosch University Logo
3
University
Ranking Based On Selection:
21
Brian W. Van Wilgen
Stellenbosch University Stellenbosch, South Africa
Natural Sciences / Biological Science
Applied ecology | fire ecology | invasion ecology | ecosystem managemen

H-Index Metrics

  • Total
    88
  • Last 5 Years
    53
  • Last 5 Years / Total
    0.602
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* Total H Index Rankings

Rankings

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16,447
World Rank
South Africa
49
Country Rank
Stellenbosch University Logo
4
University
Ranking Based On Selection:
22
Guy Midgley
Stellenbosch University Stellenbosch, South Africa
Natural Sciences / Biological Science
Ecology | conservation Biology | Earth system science | Climate chang

H-Index Metrics

  • Total
    87
  • Last 5 Years
    63
  • Last 5 Years / Total
    0.724
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* Total H Index Rankings

Rankings

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17,150
World Rank
South Africa
53
Country Rank
Stellenbosch University Logo
5
University
Ranking Based On Selection:
23
OD Makinde
Stellenbosch University Stellenbosch, South Africa
Natural Sciences / Mathematical Sciences
Fluid Mechanics | Thermal Science | Applied Mathematics | Modelling and Computations | BioMathematic

H-Index Metrics

  • Total
    86
  • Last 5 Years
    63
  • Last 5 Years / Total
    0.733
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* Total H Index Rankings

Rankings

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17,324
World Rank
South Africa
54
Country Rank
University of the Witwatersrand Logo
9
University
Ranking Based On Selection:
24
Sergio Colafrancesco
University of the Witwatersrand Johannesburg, South Africa
Natural Sciences / Physics
Astrophysics | Cosmology | Astro-Particle Physic

H-Index Metrics

  • Total
    86
  • Last 5 Years
    54
  • Last 5 Years / Total
    0.628
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* Total H Index Rankings

Rankings

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18,308
World Rank
South Africa
58
Country Rank
Rhodes University Logo
2
University
Ranking Based On Selection:
25
Tebello Nyokong
Rhodes University Grahamstown, South Africa
Natural Sciences / Chemical Sciences
Photophysic

H-Index Metrics

  • Total
    85
  • Last 5 Years
    40
  • Last 5 Years / Total
    0.471
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