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
Epidemiological research and outcome measurement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,834
52,843
0.841
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Epidemiology
Reproductive Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,657
43,761
0.958
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Patient safety
pharmacy practice
community pharmacy
optimizing antibiotics use and chronic disease management.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,059
33,042
0.942
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Mental Health
Economic Evaluation
Burden of Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,309
26,059
0.921
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Cancer
Quality of life and general burden of diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,039
23,162
0.890
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Epidemiology
Public Health
NCDs
Tobacco
Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,779
22,914
0.925
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Ecosystem modelling
Ecosystem services
Conservation of natural resources
climate change mitigation and adaptation
carbon seq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,274
14,060
0.729
* Total Citation Counts Rankings
Ranking Based On Selection: 8
enviornmental science
enviornmental biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,882
9,458
0.529
* Total Citation Counts Rankings
Ranking Based On Selection: 9
NCDs
Cancer
Hypertension
Tobacco and Alcohol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,640
14,805
0.839
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Health Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,817
16,766
0.997
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Maternal and Child Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,558
10,103
0.610
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Structural Equation modeling
Growth modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,990
9,776
0.611
* Total Citation Counts Rankings
Ranking Based On Selection: 13
global mental health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,504
11,502
0.742
* Total Citation Counts Rankings
Ranking Based On Selection: 14
treatment-resistant mood disorders
psychopharmacology
clinical trials
complex interventions
psychiatric epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,810
9,052
0.707
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Parasitology
Immunology
Biomedical Sciences
Clinical Research & Trials
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,757
5,815
0.456
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Infectious diseases
health policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,821
9,565
0.884
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Advanced Oxidation Processes
Ozone
UV
Electrolysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,906
3,484
0.352
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Statistics
Epidemiology
and Public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,661
8,625
0.893
* Total Citation Counts Rankings
Ranking Based On Selection: 19
climate
water
watershed management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,543
6,426
0.673
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Veterinary Infectious Diseases and Zoonoses
Host-pathogen interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,004
5,320
0.591
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Professor
Medical Parasitology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,481
3,961
0.529
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Ethnobotany
biodiversity conservation
ethnopharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,100
4,077
0.574
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Economics
development economics
micro-econometrics
poverty
labour market
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,183
3,346
0.541
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Malaria
Tobacco control
Occupational Health
Substance Use
Health System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,149
3,831
0.623
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Neuroscience
Natural products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,826
3,433
0.589
* Total Citation Counts Rankings
Rankings
6,929
2
1
Ranking Based On Selection: 1
Ababi Giref
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,834
52,843
0.841
Epidemiological research and outcome measurement
* Total Citation Counts Rankings
Rankings
11,506
12
2
Ranking Based On Selection: 2
Engida Yisma|Engida Yisma Derbie
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,657
43,761
0.958
Epidemiology
Reproductive Health
* Total Citation Counts Rankings
Rankings
17,594
20
3
Ranking Based On Selection: 3
Oumer Sada Muhammed
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,059
33,042
0.942
Patient safety
pharmacy practice
community pharmacy
optimizing antibiotics use and chronic disease management.
* Total Citation Counts Rankings
Rankings
24,521
26
4
Ranking Based On Selection: 4
Ababi Zergaw
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,309
26,059
0.921
Mental Health
Economic Evaluation
Burden of Disease
* Total Citation Counts Rankings
Rankings
27,782
27
5
Ranking Based On Selection: 5
Niguse Tadele
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,039
23,162
0.890
Cancer
Quality of life and general burden of diseases
* Total Citation Counts Rankings
Rankings
29,916
28
6
Ranking Based On Selection: 6
Nebiyu Dereje
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,779
22,914
0.925
Epidemiology
Public Health
NCDs
Tobacco
Cancer
* Total Citation Counts Rankings
Rankings
42,617
38
7
Ranking Based On Selection: 7
Teshome Soromessa
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,274
14,060
0.729
Ecosystem modelling
Ecosystem services
Conservation of natural resources
climate change mitigation and adaptation
carbon seq
* Total Citation Counts Rankings
Rankings
47,268
41
8
Ranking Based On Selection: 8
Mazharuddin Khan
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,882
9,458
0.529
enviornmental science
enviornmental biology
* Total Citation Counts Rankings
Rankings
48,157
42
9
Ranking Based On Selection: 9
Sefonias Getachew
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,640
14,805
0.839
NCDs
Cancer
Hypertension
Tobacco and Alcohol
* Total Citation Counts Rankings
Rankings
51,267
45
10
Ranking Based On Selection: 10
Ketema Bizuwork
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,817
16,766
0.997
* Total Citation Counts Rankings
Rankings
52,360
46
11
Ranking Based On Selection: 11
Wubegzier Mekonnen
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,558
10,103
0.610
Maternal and Child Health
* Total Citation Counts Rankings
Rankings
54,938
49
12
Ranking Based On Selection: 12
Girmay Medhin
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,990
9,776
0.611
Structural Equation modeling
Growth modeling
* Total Citation Counts Rankings
Rankings
57,184
53
13
Ranking Based On Selection: 13
Charlotte Hanlon
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,504
11,502
0.742
* Total Citation Counts Rankings
Rankings
73,282
60
14
Ranking Based On Selection: 14
Abebaw Fekadu
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,810
9,052
0.707
treatment-resistant mood disorders
psychopharmacology
clinical trials
complex interventions
psychiatric epidemiology
* Total Citation Counts Rankings
Rankings
73,678
61
15
Ranking Based On Selection: 15
Asrat Hailu
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,757
5,815
0.456
Parasitology
Immunology
Biomedical Sciences
Clinical Research & Trials
Public Health
* Total Citation Counts Rankings
Rankings
89,892
72
16
Ranking Based On Selection: 16
Tsegahun Manyazewal
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,821
9,565
0.884
* Total Citation Counts Rankings
Rankings
99,564
74
17
Ranking Based On Selection: 17
Joon Wun Kang
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,906
3,484
0.352
Advanced Oxidation Processes
Ozone
UV
Electrolysis
* Total Citation Counts Rankings
Rankings
102,439
76
18
Ranking Based On Selection: 18
Nigussie Assefa Kassaw
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,661
8,625
0.893
Statistics
Epidemiology
and Public health
* Total Citation Counts Rankings
Rankings
103,840
77
19
Ranking Based On Selection: 19
Woldeamlak Bewket
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,543
6,426
0.673
climate
water
watershed management
* Total Citation Counts Rankings
Rankings
110,999
79
20
Ranking Based On Selection: 20
Gobena Ameni
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,004
5,320
0.591
Veterinary Infectious Diseases and Zoonoses
Host-pathogen interactions
* Total Citation Counts Rankings
Rankings
136,325
83
21
Ranking Based On Selection: 21
Berhanu Erko
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,481
3,961
0.529
Professor
Medical Parasitology
* Total Citation Counts Rankings
Rankings
144,163
86
22
Ranking Based On Selection: 22
Mirutse Giday
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,100
4,077
0.574
Ethnobotany
biodiversity conservation
ethnopharmacology
* Total Citation Counts Rankings
Rankings
166,357
88
23
Ranking Based On Selection: 23
Tassew Woldehanna
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,183
3,346
0.541
Economics
development economics
micro-econometrics
poverty
labour market
* Total Citation Counts Rankings
Rankings
167,270
89
24
Ranking Based On Selection: 24
Wakgari Deressa
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,149
3,831
0.623
Malaria
Tobacco control
Occupational Health
Substance Use
Health System
* Total Citation Counts Rankings
Rankings
176,464
91
25
Ranking Based On Selection: 25
Ephrem Engidawork
Addis Ababa University
Addis Ababa, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,826
3,433
0.589