Citation Rankings
Highly Cited Researchers

University of Cape Town Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) 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 :1
South Africa
Sahal Yacoob
High Energy Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289,752
129,340
0.446
* Total Citation Counts Rankings
Ranking Based On Selection :2
South Africa
Dan J Stein
Anxiety disorders
Psychiatry in Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275,732
186,905
0.678
* Total Citation Counts Rankings
Ranking Based On Selection :3
South Africa
Karen Sliwa
cardiology
heart failure
Africa
peripartum
covid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145,841
92,903
0.637
* Total Citation Counts Rankings
Ranking Based On Selection :4
South Africa
Bongani M Mayosi
Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133,729
77,601
0.580
* Total Citation Counts Rankings
Ranking Based On Selection :6
South Africa
Jean Cleymans
Physics
Thermal Models
particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,069
41,717
0.496
* Total Citation Counts Rankings
Ranking Based On Selection :7
South Africa
Liesl Zuhlke
Paediatric Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,423
61,793
0.853
* Total Citation Counts Rankings
Ranking Based On Selection :8
South Africa
Eric Bateman
Respiratory medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,652
26,019
0.379
* Total Citation Counts Rankings
Ranking Based On Selection :9
South Africa
William Bond
Ecology
evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,416
30,058
0.439
* Total Citation Counts Rankings
Ranking Based On Selection :10
South Africa
Heather Zar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,382
37,894
0.607
* Total Citation Counts Rankings
Ranking Based On Selection :11
South Africa
TH Jarrett
astronomy and astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,187
22,316
0.397
* Total Citation Counts Rankings
Ranking Based On Selection :12
South Africa
George FR Ellis
Relativity
cosmology
complexity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,669
13,174
0.265
* Total Citation Counts Rankings
Ranking Based On Selection :13
South Africa
Keertan Dheda
pulmonary infections
tuberculosis
diseases of poverty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,418
27,396
0.566
* Total Citation Counts Rankings
Ranking Based On Selection :14
South Africa
Mark New
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,858
18,251
0.398
* Total Citation Counts Rankings
Ranking Based On Selection :15
South Africa
Estelle Lambert
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
45,252
27,622
0.610
* Total Citation Counts Rankings
Ranking Based On Selection :16
South Africa
Darren Martin
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,550
22,759
0.606
* Total Citation Counts Rankings
Ranking Based On Selection :17
South Africa
Landon Myer
epidemiology
biostatistics
HIV
maternal & child health
women's health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,929
14,394
0.437
* Total Citation Counts Rankings
Ranking Based On Selection :18
South Africa
Mattia Vaccari
Astrophysics
Observational Optical/Infrared/Radio Galaxy Evolution
Cloud Computing
Machine Learning
Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,902
15,818
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :19
South Africa
Bruce Hewitson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,059
8,924
0.278
* Total Citation Counts Rankings
Ranking Based On Selection :21
South Africa
Lucy Gilson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,384
11,745
0.400
* Total Citation Counts Rankings
Ranking Based On Selection :22
South Africa
Dirk Blom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,213
15,247
0.560
* Total Citation Counts Rankings
Ranking Based On Selection :23
South Africa
Gary Maartens
HIV
tuberculosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,047
11,163
0.429
* Total Citation Counts Rankings
Ranking Based On Selection :24
South Africa
Graeme Meintjes
HIV
Tuberculosis
Cryptococcosis
Immune Reconstitution Inflammatory Syndrome
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,826
14,732
0.570
* Total Citation Counts Rankings
Ranking Based On Selection :25
South Africa
Mark Patrick Nicol
microbiology
pneumonia
tuberculosis
microbiome
diagnostics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,288
14,240
0.563
* Total Citation Counts Rankings
Rankings
244
South Africa
1
1
Ranking Based On Selection: 1
Sahal Yacoob
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289,752
129,340
0.446
* Total Citation Counts Rankings
Rankings
301
South Africa
2
2
Ranking Based On Selection: 2
Dan J Stein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275,732
186,905
0.678
* Total Citation Counts Rankings
Rankings
1,514
South Africa
4
3
Ranking Based On Selection: 3
Karen Sliwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145,841
92,903
0.637
cardiology
heart failure
Africa
peripartum
covid
* Total Citation Counts Rankings
Rankings
1,775
South Africa
7
4
Ranking Based On Selection: 4
Bongani M Mayosi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133,729
77,601
0.580
* Total Citation Counts Rankings
Rankings
3,177
South Africa
9
5
Ranking Based On Selection: 5
Naomi Sharlene Levitt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,182
58,390
0.589
* Total Citation Counts Rankings
Rankings
4,271
South Africa
10
6
Ranking Based On Selection: 6
Jean Cleymans
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,069
41,717
0.496
Physics
Thermal Models
particle Physics
* Total Citation Counts Rankings
Rankings
5,518
South Africa
15
7
Ranking Based On Selection: 7
Liesl Zuhlke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,423
61,793
0.853
* Total Citation Counts Rankings
Rankings
6,026
South Africa
16
8
Ranking Based On Selection: 8
Eric Bateman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,652
26,019
0.379
* Total Citation Counts Rankings
Rankings
6,062
South Africa
18
9
Ranking Based On Selection: 9
William Bond
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,416
30,058
0.439
* Total Citation Counts Rankings
Rankings
7,051
South Africa
23
10
Ranking Based On Selection: 10
Heather Zar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,382
37,894
0.607
* Total Citation Counts Rankings
Rankings
8,313
South Africa
24
11
Ranking Based On Selection: 11
TH Jarrett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,187
22,316
0.397
* Total Citation Counts Rankings
Rankings
10,157
South Africa
28
12
Ranking Based On Selection: 12
George FR Ellis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,669
13,174
0.265
* Total Citation Counts Rankings
Rankings
10,538
South Africa
30
13
Ranking Based On Selection: 13
Keertan Dheda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,418
27,396
0.566
pulmonary infections
tuberculosis
diseases of poverty
* Total Citation Counts Rankings
Rankings
11,471
South Africa
33
14
Ranking Based On Selection: 14
Mark New
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,858
18,251
0.398
* Total Citation Counts Rankings
Rankings
11,726
South Africa
35
15
Ranking Based On Selection: 15
Estelle Lambert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,252
27,622
0.610
physical activity and public health
non-communicable diseases
health behavior change
global south and healthy cities
obesity
* Total Citation Counts Rankings
Rankings
15,855
South Africa
46
16
Ranking Based On Selection: 16
Darren Martin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,550
22,759
0.606
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
* Total Citation Counts Rankings
Rankings
19,412
South Africa
53
17
Ranking Based On Selection: 17
Landon Myer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,929
14,394
0.437
epidemiology
biostatistics
HIV
maternal & child health
women's health
* Total Citation Counts Rankings
Rankings
19,437
South Africa
54
18
Ranking Based On Selection: 18
Mattia Vaccari
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,902
15,818
0.481
Astrophysics
Observational Optical/Infrared/Radio Galaxy Evolution
Cloud Computing
Machine Learning
Statistics
* Total Citation Counts Rankings
Rankings
20,291
South Africa
58
19
Ranking Based On Selection: 19
Bruce Hewitson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,059
8,924
0.278
* Total Citation Counts Rankings
Rankings
20,758
South Africa
60
20
Ranking Based On Selection: 20
Nelia Patricia Steyn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,610
13,544
0.428
* Total Citation Counts Rankings
Rankings
23,260
South Africa
69
21
Ranking Based On Selection: 21
Lucy Gilson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,384
11,745
0.400
* Total Citation Counts Rankings
Rankings
26,074
South Africa
76
22
Ranking Based On Selection: 22
Dirk Blom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,213
15,247
0.560
* Total Citation Counts Rankings
Rankings
27,890
South Africa
79
23
Ranking Based On Selection: 23
Gary Maartens
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,047
11,163
0.429
* Total Citation Counts Rankings
Rankings
28,235
South Africa
82
24
Ranking Based On Selection: 24
Graeme Meintjes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,826
14,732
0.570
HIV
Tuberculosis
Cryptococcosis
Immune Reconstitution Inflammatory Syndrome
* Total Citation Counts Rankings
Rankings
29,134
South Africa
88
25
Ranking Based On Selection: 25
Mark Patrick Nicol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,288
14,240
0.563
microbiology
pneumonia
tuberculosis
microbiome
diagnostics