Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 19.039 Scientists Citation in South Africa Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 26
medicinal chemistry
peptides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,951
23,386
0.418
* Total Citation Counts Rankings
Ranking Based On Selection: 27
Epidemiology
Evidence Synthesis
Implementation Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,028
47,411
0.911
* Total Citation Counts Rankings
Ranking Based On Selection: 28
Ecology
conservation Biology
Earth system science
Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,239
20,362
0.405
* Total Citation Counts Rankings
Ranking Based On Selection: 29
Relativity
cosmology
complexity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,185
11,669
0.233
* Total Citation Counts Rankings
Ranking Based On Selection: 30
pulmonary infections
tuberculosis
diseases of poverty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,277
25,292
0.513
* Total Citation Counts Rankings
Ranking Based On Selection: 31
Mycobacteriology
Molecular Biology
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,022
24,382
0.508
* Total Citation Counts Rankings
Ranking Based On Selection: 32
gamma-ray astronomy
Cosmic Rays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,476
15,433
0.325
* Total Citation Counts Rankings
Ranking Based On Selection: 33
physical activity and public health
non-communicable diseases
health behavior change
global south and healthy cities
obesity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,684
25,863
0.554
* Total Citation Counts Rankings
Ranking Based On Selection: 34
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,658
16,495
0.354
* Total Citation Counts Rankings
Ranking Based On Selection: 35
Astroparticle Physics
High Energy Astrophysics
Gamma-ray Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,176
18,581
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 36
Plant diversity and evolution
palaeovegetation science
conservation science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,133
10,380
0.225
* Total Citation Counts Rankings
Ranking Based On Selection: 37
child development
adolescent development
HIV
AIDS
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,931
19,201
0.427
* Total Citation Counts Rankings
Ranking Based On Selection: 38
Clinical Medicine
Epidemiology
Cancer
Infectious disease
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,314
40,048
0.904
* Total Citation Counts Rankings
Ranking Based On Selection: 39
HIV Prevention and Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,763
17,485
0.400
* Total Citation Counts Rankings
Ranking Based On Selection: 40
health sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,506
21,640
0.497
* Total Citation Counts Rankings
Ranking Based On Selection: 41
Polymer Physics and Polymer Nanocomposites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,669
16,422
0.394
* Total Citation Counts Rankings
Ranking Based On Selection: 42
Pulsars
gamma-ray astronomy
globular clusters
cosmic rays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,171
12,798
0.311
* Total Citation Counts Rankings
Ranking Based On Selection: 43
corrosion
corrosion inhibition
corrosion of metals
adsorption
quantum chemical calculations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,098
23,835
0.594
* Total Citation Counts Rankings
Ranking Based On Selection: 44
Astrophysics
cosmology
radio astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,507
29,848
0.756
* Total Citation Counts Rankings
Ranking Based On Selection: 45
Macroecomomics
forecasting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,658
27,356
0.708
* Total Citation Counts Rankings
Ranking Based On Selection: 46
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,178
20,729
0.543
* Total Citation Counts Rankings
Ranking Based On Selection: 47
Epidemiology
Public Health
Infectious Diseases
EHealth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,919
34,070
0.898
* Total Citation Counts Rankings
Ranking Based On Selection: 48
Photophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,173
11,820
0.327
* Total Citation Counts Rankings
Ranking Based On Selection: 49
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,960
19,538
0.543
* Total Citation Counts Rankings
Ranking Based On Selection: 50
Tuberculosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,767
12,496
0.359
* Total Citation Counts Rankings
Rankings
8,600
26
1
Ranking Based On Selection: 26
Fernando Albericio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,951
23,386
0.418
* Total Citation Counts Rankings
Rankings
9,661
27
9
Ranking Based On Selection: 27
Abdu A Adamu
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,028
47,411
0.911
Epidemiology
Evidence Synthesis
Implementation Science
* Total Citation Counts Rankings
Rankings
10,200
28
3
Ranking Based On Selection: 28
Guy Midgley
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,239
20,362
0.405
Ecology
conservation Biology
Earth system science
Climate change
* Total Citation Counts Rankings
Rankings
10,219
29
12
Ranking Based On Selection: 29
George FR Ellis
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,185
11,669
0.233
Relativity
cosmology
complexity
* Total Citation Counts Rankings
Rankings
10,490
30
13
Ranking Based On Selection: 30
Keertan Dheda
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,277
25,292
0.513
pulmonary infections
tuberculosis
diseases of poverty
* Total Citation Counts Rankings
Rankings
10,933
31
1
Ranking Based On Selection: 31
Nazir Ismail
National Institute for Communicable Diseases
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,022
24,382
0.508
Mycobacteriology
Molecular Biology
Public Health
* Total Citation Counts Rankings
Rankings
11,103
32
10
Ranking Based On Selection: 32
Nukri Komin
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,476
15,433
0.325
* Total Citation Counts Rankings
Rankings
11,410
33
14
Ranking Based On Selection: 33
Estelle Lambert
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,684
25,863
0.554
physical activity and public health
non-communicable diseases
health behavior change
global south and healthy cities
obesity
* Total Citation Counts Rankings
Rankings
11,428
34
15
Ranking Based On Selection: 34
Mark New
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,658
16,495
0.354
* Total Citation Counts Rankings
Rankings
11,616
35
3
Ranking Based On Selection: 35
Soebur Razzaque
University of Johannesburg
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,176
18,581
0.402
Astroparticle Physics
High Energy Astrophysics
Gamma-ray Astronomy
* Total Citation Counts Rankings
Rankings
11,636
36
1
Ranking Based On Selection: 36
Richard M. Cowling
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,133
10,380
0.225
Plant diversity and evolution
palaeovegetation science
conservation science
* Total Citation Counts Rankings
Rankings
12,143
37
11
Ranking Based On Selection: 37
Linda Richter
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,931
19,201
0.427
child development
adolescent development
HIV
AIDS
public health
* Total Citation Counts Rankings
Rankings
12,432
38
2
Ranking Based On Selection: 38
Yoshan Moodley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,314
40,048
0.904
Clinical Medicine
Epidemiology
Cancer
Infectious disease
Surgery
* Total Citation Counts Rankings
Rankings
12,695
39
3
Ranking Based On Selection: 39
Salim S. Abdool Karim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,763
17,485
0.400
HIV Prevention and Treatment
* Total Citation Counts Rankings
Rankings
12,822
40
1
Ranking Based On Selection: 40
Karl Peltzer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,506
21,640
0.497
* Total Citation Counts Rankings
Rankings
13,722
41
1
Ranking Based On Selection: 41
Suprakas Sinha Ray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,669
16,422
0.394
* Total Citation Counts Rankings
Rankings
13,999
42
1
Ranking Based On Selection: 42
Christo Venter
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,171
12,798
0.311
Pulsars
gamma-ray astronomy
globular clusters
cosmic rays
* Total Citation Counts Rankings
Rankings
14,626
43
1
Ranking Based On Selection: 43
Eno E. Ebenso
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,098
23,835
0.594
corrosion
corrosion inhibition
corrosion of metals
adsorption
quantum chemical calculations
* Total Citation Counts Rankings
Rankings
14,968
44
4
Ranking Based On Selection: 44
Yin-Zhe Ma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,507
29,848
0.756
Astrophysics
cosmology
radio astronomy
* Total Citation Counts Rankings
Rankings
15,476
45
2
Ranking Based On Selection: 45
Rangan Gupta
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,658
27,356
0.708
* Total Citation Counts Rankings
Rankings
15,807
46
16
Ranking Based On Selection: 46
Darren Martin
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,178
20,729
0.543
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
* Total Citation Counts Rankings
Rankings
15,992
47
4
Ranking Based On Selection: 47
Peter Nyasulumed Mace
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,919
34,070
0.898
Epidemiology
Public Health
Infectious Diseases
EHealth
* Total Citation Counts Rankings
Rankings
17,197
48
1
Ranking Based On Selection: 48
Tebello Nyokong
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,173
11,820
0.327
* Total Citation Counts Rankings
Rankings
17,355
49
12
Ranking Based On Selection: 49
Andrew Chen
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,960
19,538
0.543
* Total Citation Counts Rankings
Rankings
18,280
50
5
Ranking Based On Selection: 50
Robin M Warren
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,767
12,496
0.359