Citation Rankings
Highly Cited Researchers
University of the Witwatersrand 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
carbon cycle
savannas
earth observation
biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185,599
74,331
0.400
* Total Citation Counts Rankings
Ranking Based On Selection :2
Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,288
62,160
0.463
* Total Citation Counts Rankings
Ranking Based On Selection :3
Condensed Matter
Density Functional Theory
Electronic Structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,848
42,131
0.534
* Total Citation Counts Rankings
Ranking Based On Selection :4
High Energy physics
Grid Computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,241
41,263
0.548
* Total Citation Counts Rankings
Ranking Based On Selection :5
African politics
history
colonialism
race
enlightenment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,006
40,446
0.613
* Total Citation Counts Rankings
Ranking Based On Selection :6
First interest
Second interest
Vaccinology
Respiratory pathogens
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,164
43,067
0.661
* Total Citation Counts Rankings
Ranking Based On Selection :7
Astrophysics
Cosmology
Astro-Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,251
30,617
0.484
* Total Citation Counts Rankings
Ranking Based On Selection :8
High Energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,365
51,044
0.957
* Total Citation Counts Rankings
Ranking Based On Selection :9
Epidemiology
Evidence Synthesis
Implementation Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,923
48,358
0.969
* Total Citation Counts Rankings
Ranking Based On Selection :10
gamma-ray astronomy
Cosmic Rays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,724
18,067
0.387
* Total Citation Counts Rankings
Ranking Based On Selection :11
child development
adolescent development
HIV
AIDS
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,061
21,806
0.495
* Total Citation Counts Rankings
Ranking Based On Selection :12
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,007
21,225
0.606
* Total Citation Counts Rankings
Ranking Based On Selection :13
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,418
24,940
0.820
* Total Citation Counts Rankings
Ranking Based On Selection :14
particle physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,125
9,619
0.368
* Total Citation Counts Rankings
Ranking Based On Selection :15
Infectious Diseases
HIV
Tuberculosis
Health Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,490
9,198
0.361
* Total Citation Counts Rankings
Ranking Based On Selection :16
HIV TB COVID HAEMATOLOFY
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,453
11,611
0.475
* Total Citation Counts Rankings
Ranking Based On Selection :17
laser resonators
laser beam shaping
orbital angular momentum
structured light
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,817
15,575
0.748
* Total Citation Counts Rankings
Ranking Based On Selection :18
malaria
mosquitoes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,487
8,365
0.408
* Total Citation Counts Rankings
Ranking Based On Selection :19
Wildlife Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,390
6,678
0.328
* Total Citation Counts Rankings
Ranking Based On Selection :20
Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,938
19,237
0.965
* Total Citation Counts Rankings
Ranking Based On Selection :21
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,852
7,031
0.373
* Total Citation Counts Rankings
Ranking Based On Selection :22
Nephrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,693
11,646
0.658
* Total Citation Counts Rankings
Ranking Based On Selection :23
Earth Observation
Global Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,686
4,486
0.254
* Total Citation Counts Rankings
Ranking Based On Selection :24
Biomaterials
Advanced Drug Delivery
Atomistic Simulations
Implant
Neurotherapeutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,821
10,006
0.595
* Total Citation Counts Rankings
Ranking Based On Selection :25
Virology and Child health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,426
15,952
0.971
* Total Citation Counts Rankings
Rankings
956
3
1
Ranking Based On Selection: 1
Robert J Scholes
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185,599
74,331
0.400
carbon cycle
savannas
earth observation
biodiversity
* Total Citation Counts Rankings
Rankings
1,764
6
2
Ranking Based On Selection: 2
Bruce Mellado
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,288
62,160
0.463
* Total Citation Counts Rankings
Rankings
4,762
13
3
Ranking Based On Selection: 3
Daniel Joubert
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,848
42,131
0.534
Condensed Matter
Density Functional Theory
Electronic Structure
* Total Citation Counts Rankings
Rankings
5,190
14
4
Ranking Based On Selection: 4
Zeblon Vilakazi
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,241
41,263
0.548
* Total Citation Counts Rankings
Rankings
6,396
19
5
Ranking Based On Selection: 5
Achille Mbembe
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,006
40,446
0.613
African politics
history
colonialism
race
enlightenment
* Total Citation Counts Rankings
Rankings
6,518
20
6
Ranking Based On Selection: 6
Shabir A. Madhi
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,164
43,067
0.661
First interest
Second interest
Vaccinology
Respiratory pathogens
* Total Citation Counts Rankings
Rankings
6,860
22
7
Ranking Based On Selection: 7
Sergio Colafrancesco
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,251
30,617
0.484
Astrophysics
Cosmology
Astro-Particle Physics
* Total Citation Counts Rankings
Rankings
9,029
26
8
Ranking Based On Selection: 8
Joyful Mdhluli
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,365
51,044
0.957
* Total Citation Counts Rankings
Rankings
10,049
27
9
Ranking Based On Selection: 9
Abdu A Adamu
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,923
48,358
0.969
Epidemiology
Evidence Synthesis
Implementation Science
* Total Citation Counts Rankings
Rankings
11,102
32
10
Ranking Based On Selection: 10
Nukri Komin
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,724
18,067
0.387
* Total Citation Counts Rankings
Rankings
12,210
37
11
Ranking Based On Selection: 11
Linda Richter
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,061
21,806
0.495
child development
adolescent development
HIV
AIDS
public health
* Total Citation Counts Rankings
Rankings
17,632
49
12
Ranking Based On Selection: 12
Andrew Chen
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,007
21,225
0.606
* Total Citation Counts Rankings
Rankings
21,880
60
13
Ranking Based On Selection: 13
Alisha Wade
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,418
24,940
0.820
* Total Citation Counts Rankings
Rankings
27,644
76
14
Ranking Based On Selection: 14
Xifeng Ruan
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,125
9,619
0.368
* Total Citation Counts Rankings
Rankings
28,667
84
15
Ranking Based On Selection: 15
Ian Sanne
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,490
9,198
0.361
Infectious Diseases
HIV
Tuberculosis
Health Economics
* Total Citation Counts Rankings
Rankings
30,517
94
16
Ranking Based On Selection: 16
Wendy Stevens|Stevens Wendy S, Stevens W, StevensW.S.
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,453
11,611
0.475
* Total Citation Counts Rankings
Rankings
38,346
117
17
Ranking Based On Selection: 17
Andrew Forbes
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,817
15,575
0.748
laser resonators
laser beam shaping
orbital angular momentum
structured light
* Total Citation Counts Rankings
Rankings
39,247
120
18
Ranking Based On Selection: 18
Maureen Coetzee
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,487
8,365
0.408
* Total Citation Counts Rankings
Rankings
39,498
121
19
Ranking Based On Selection: 19
Norman Owen-Smith
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,390
6,678
0.328
* Total Citation Counts Rankings
Rankings
40,751
126
20
Ranking Based On Selection: 20
Tasnuva Chowdhury
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,938
19,237
0.965
* Total Citation Counts Rankings
Rankings
43,898
138
21
Ranking Based On Selection: 21
Charles Feldman
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,852
7,031
0.373
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
* Total Citation Counts Rankings
Rankings
47,945
151
22
Ranking Based On Selection: 22
Saraladevi Naicker
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,693
11,646
0.658
* Total Citation Counts Rankings
Rankings
47,971
152
23
Ranking Based On Selection: 23
Michel Verstraete
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,686
4,486
0.254
Earth Observation
Global Change
* Total Citation Counts Rankings
Rankings
51,253
164
24
Ranking Based On Selection: 24
Viness Pillay
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,821
10,006
0.595
Biomaterials
Advanced Drug Delivery
Atomistic Simulations
Implant
Neurotherapeutics
* Total Citation Counts Rankings
Rankings
52,915
170
25
Ranking Based On Selection: 25
Vicky Baillie
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,426
15,952
0.971