Citation Rankings
Highly Cited Researchers
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
High Energy Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
293,071
132,402
0.452
* Total Citation Counts Rankings
Ranking Based On Selection :2
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
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
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 :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,182
58,390
0.589
* Total Citation Counts Rankings
Ranking Based On Selection :6
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
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
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
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
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
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
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
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
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
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
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
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
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
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,059
8,924
0.278
* Total Citation Counts Rankings
Ranking Based On Selection :20
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,610
13,544
0.428
* Total Citation Counts Rankings
Ranking Based On Selection :21
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
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
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
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
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
233
1
1
Ranking Based On Selection: 1
Sahal Yacoob
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
293,071
132,402
0.452
* Total Citation Counts Rankings
Rankings
304
2
2
Ranking Based On Selection: 2
Dan J Stein
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275,732
186,905
0.678
Anxiety disorders
Psychiatry in Africa
* Total Citation Counts Rankings
Rankings
1,509
4
3
Ranking Based On Selection: 3
Karen Sliwa
University of Cape Town
Cape Town, South Africa
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
1,776
7
4
Ranking Based On Selection: 4
Bongani M Mayosi
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133,729
77,601
0.580
* Total Citation Counts Rankings
Rankings
3,163
9
5
Ranking Based On Selection: 5
Naomi Sharlene Levitt
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,182
58,390
0.589
* Total Citation Counts Rankings
Rankings
4,254
10
6
Ranking Based On Selection: 6
Jean Cleymans
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,069
41,717
0.496
* Total Citation Counts Rankings
Rankings
5,501
15
7
Ranking Based On Selection: 7
Liesl Zuhlke
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,423
61,793
0.853
Paediatric Cardiology
* Total Citation Counts Rankings
Rankings
6,002
16
8
Ranking Based On Selection: 8
Eric Bateman
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,652
26,019
0.379
* Total Citation Counts Rankings
Rankings
6,037
18
9
Ranking Based On Selection: 9
William Bond
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,416
30,058
0.439
* Total Citation Counts Rankings
Rankings
7,019
23
10
Ranking Based On Selection: 10
Heather Zar
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,382
37,894
0.607
* Total Citation Counts Rankings
Rankings
8,292
24
11
Ranking Based On Selection: 11
TH Jarrett
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,187
22,316
0.397
astronomy and astrophysics
* Total Citation Counts Rankings
Rankings
10,124
28
12
Ranking Based On Selection: 12
George FR Ellis
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,669
13,174
0.265
Relativity
cosmology
complexity
* Total Citation Counts Rankings
Rankings
10,511
30
13
Ranking Based On Selection: 13
Keertan Dheda
University of Cape Town
Cape Town, South Africa
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
11,428
33
14
Ranking Based On Selection: 14
Mark New
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,858
18,251
0.398
* Total Citation Counts Rankings
Rankings
11,697
36
15
Ranking Based On Selection: 15
Estelle Lambert
University of Cape Town
Cape Town, South Africa
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
15,793
45
16
Ranking Based On Selection: 16
Darren Martin
University of Cape Town
Cape Town, South Africa
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
19,335
52
17
Ranking Based On Selection: 17
Landon Myer
University of Cape Town
Cape Town, South Africa
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
19,359
53
18
Ranking Based On Selection: 18
Mattia Vaccari
University of Cape Town
Cape Town, South Africa
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
20,203
56
19
Ranking Based On Selection: 19
Bruce Hewitson
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,059
8,924
0.278
* Total Citation Counts Rankings
Rankings
20,670
58
20
Ranking Based On Selection: 20
Nelia Patricia Steyn
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,610
13,544
0.428
* Total Citation Counts Rankings
Rankings
23,176
66
21
Ranking Based On Selection: 21
Lucy Gilson
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,384
11,745
0.400
* Total Citation Counts Rankings
Rankings
25,959
73
22
Ranking Based On Selection: 22
Dirk Blom
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,213
15,247
0.560
* Total Citation Counts Rankings
Rankings
27,774
78
23
Ranking Based On Selection: 23
Gary Maartens
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,047
11,163
0.429
* Total Citation Counts Rankings
Rankings
28,122
79
24
Ranking Based On Selection: 24
Graeme Meintjes
University of Cape Town
Cape Town, South Africa
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
29,000
87
25
Ranking Based On Selection: 25
Mark Patrick Nicol
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,288
14,240
0.563
microbiology
pneumonia
tuberculosis
microbiome
diagnostics