Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 858 Scientists Citation 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: 1
Ireland
Michael Zaworotko
crystal engineering
pharmaceutical materials
porous materials
pharmaceutical cocrystals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,919
18,741
0.289
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Ireland
Connor Hannan
Business
Economics
Finance
Law
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,296
23,611
0.435
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Ireland
Kevin R Murphy
psychometrics
performance appraisal
personnel assessment
statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,194
7,686
0.239
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Ireland
Elaine Murtagh
Physical activity
physical education
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,795
18,369
0.712
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Ireland
Richard J Fitzgerald
Food Proteins and Bioactive Peptides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,120
11,314
0.469
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Ireland
Desmond J Fitzgerald
Cardiovascular
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,118
2,648
0.120
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Ireland
Brian Fitzgerald
Agile methods
open source software
information systems development
inner_source
DevOps
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,703
5,520
0.280
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Ireland
Paul M Weaver
Stiffness tailoring
composites
morphing
buckling
structural mechanics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,155
8,695
0.507
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Ireland
Mary O'Sullivan
Teacher Education
Physical Education
Teachers
Professional Development
Curriculum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,979
4,614
0.272
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Ireland
George E Barreto
brain
mitochondria
steroid hormones
neurodegeneration and sex differences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,415
11,347
0.691
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Ireland
Julian RH Ross
Heterogeneous catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,897
2,801
0.176
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Ireland
Liam J Bannon
human-computer interaction
computer supported cooperative work
interaction design
participatory design
activity theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,994
2,583
0.185
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Ireland
Vivek V Ranade
multiphase reactors
multiphase flows
CFD
process intensification
commercialization of technologies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,656
5,694
0.417
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Ireland
Cathal Walsh
Statistics
Infectious Disease Modelling
Risk Prediction
One Health
Vaccination
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,169
5,983
0.454
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Ireland
J Calvin Coffey
Anatomy
Surgery
Crohn's disease
Colorectal Surgery
Abdomen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,118
7,187
0.548
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Ireland
Rose Galvin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,643
6,663
0.572
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Ireland
Colum Dunne
Medical Microbiology
Hospital acquired infection
Infection prevention and control
intestinal anatomy and microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,920
4,778
0.438
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Ireland
Michael J Morley
International
Comparative
Cross-Cultural Human Resource Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,903
3,518
0.323
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Ireland
Owen Doody
Intellectual disability
Nursing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,860
7,670
0.706
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Ireland
Vasanth Kumar Kannuchamy
Crystal Growth
Carbon
Nanotechnology
Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,860
4,100
0.378
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Ireland
Maurice N Collins
Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,673
8,204
0.769
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Ireland
Gary Walsh
Pharmaceutical & enzyme biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,552
3,368
0.319
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Ireland
James P Gleeson
Complex networks
network science
mathematical modelling
social contagion
applied mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,440
4,686
0.449
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Ireland
William T O Connor
Microdialysis
Neurotransmitters
Striatum
Clozapine
Functional Neuroanatomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,360
1,123
0.108
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Ireland
Michael Mike Larvin
pancreatic disease
bariatric surgery
educational technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,302
2,460
0.239
* Total Citation Counts Rankings
Rankings
6,771
Ireland
16
1
Ranking Based On Selection: 1
Michael Zaworotko
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,919
18,741
0.289
crystal engineering
pharmaceutical materials
porous materials
pharmaceutical cocrystals
* Total Citation Counts Rankings
Rankings
9,024
Ireland
24
2
Ranking Based On Selection: 2
Connor Hannan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,296
23,611
0.435
* Total Citation Counts Rankings
Rankings
20,587
Ireland
72
3
Ranking Based On Selection: 3
Kevin R Murphy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,194
7,686
0.239
psychometrics
performance appraisal
personnel assessment
statistics
* Total Citation Counts Rankings
Rankings
28,852
Ireland
107
4
Ranking Based On Selection: 4
Elaine Murtagh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,795
18,369
0.712
* Total Citation Counts Rankings
Rankings
31,861
Ireland
115
5
Ranking Based On Selection: 5
Richard J Fitzgerald
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,120
11,314
0.469
* Total Citation Counts Rankings
Rankings
36,008
Ireland
128
6
Ranking Based On Selection: 6
Desmond J Fitzgerald
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,118
2,648
0.120
* Total Citation Counts Rankings
Rankings
42,330
Ireland
154
7
Ranking Based On Selection: 7
Brian Fitzgerald
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,703
5,520
0.280
Agile methods
open source software
information systems development
inner_source
DevOps
* Total Citation Counts Rankings
Rankings
51,098
Ireland
196
8
Ranking Based On Selection: 8
Paul M Weaver
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,155
8,695
0.507
Stiffness tailoring
composites
morphing
buckling
structural mechanics
* Total Citation Counts Rankings
Rankings
51,779
Ireland
199
9
Ranking Based On Selection: 9
Mary O'Sullivan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,979
4,614
0.272
Teacher Education
Physical Education
Teachers
Professional Development
Curriculum
* Total Citation Counts Rankings
Rankings
54,250
Ireland
219
10
Ranking Based On Selection: 10
George E Barreto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,415
11,347
0.691
brain
mitochondria
steroid hormones
neurodegeneration and sex differences
* Total Citation Counts Rankings
Rankings
56,580
Ireland
232
11
Ranking Based On Selection: 11
Julian RH Ross
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,897
2,801
0.176
* Total Citation Counts Rankings
Rankings
66,946
Ireland
275
12
Ranking Based On Selection: 12
Liam J Bannon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,994
2,583
0.185
human-computer interaction
computer supported cooperative work
interaction design
participatory design
activity theory
* Total Citation Counts Rankings
Rankings
69,074
Ireland
284
13
Ranking Based On Selection: 13
Vivek V Ranade
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,656
5,694
0.417
multiphase reactors
multiphase flows
CFD
process intensification
commercialization of technologies
* Total Citation Counts Rankings
Rankings
72,312
Ireland
297
14
Ranking Based On Selection: 14
Cathal Walsh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,169
5,983
0.454
Statistics
Infectious Disease Modelling
Risk Prediction
One Health
Vaccination
* Total Citation Counts Rankings
Rankings
72,692
Ireland
299
15
Ranking Based On Selection: 15
J Calvin Coffey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,118
7,187
0.548
Anatomy
Surgery
Crohn's disease
Colorectal Surgery
Abdomen
* Total Citation Counts Rankings
Rankings
84,123
Ireland
337
16
Ranking Based On Selection: 16
Rose Galvin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,643
6,663
0.572
* Total Citation Counts Rankings
Rankings
90,807
Ireland
367
17
Ranking Based On Selection: 17
Colum Dunne
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,920
4,778
0.438
Medical Microbiology
Hospital acquired infection
Infection prevention and control
intestinal anatomy and microbiology
* Total Citation Counts Rankings
Rankings
90,976
Ireland
368
18
Ranking Based On Selection: 18
Michael J Morley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,903
3,518
0.323
International
Comparative
Cross-Cultural Human Resource Management
* Total Citation Counts Rankings
Rankings
91,386
Ireland
371
19
Ranking Based On Selection: 19
Owen Doody
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,860
7,670
0.706
* Total Citation Counts Rankings
Rankings
91,393
Ireland
372
20
Ranking Based On Selection: 20
Vasanth Kumar Kannuchamy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,860
4,100
0.378
* Total Citation Counts Rankings
Rankings
93,277
Ireland
380
21
Ranking Based On Selection: 21
Maurice N Collins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,673
8,204
0.769
* Total Citation Counts Rankings
Rankings
94,489
Ireland
388
22
Ranking Based On Selection: 22
Gary Walsh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,552
3,368
0.319
* Total Citation Counts Rankings
Rankings
95,672
Ireland
393
23
Ranking Based On Selection: 23
James P Gleeson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,440
4,686
0.449
Complex networks
network science
mathematical modelling
social contagion
applied mathematics
* Total Citation Counts Rankings
Rankings
96,551
Ireland
404
24
Ranking Based On Selection: 24
William T O Connor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,360
1,123
0.108
Microdialysis
Neurotransmitters
Striatum
Clozapine
Functional Neuroanatomy
* Total Citation Counts Rankings
Rankings
97,177
Ireland
409
25
Ranking Based On Selection: 25
Michael Mike Larvin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,302
2,460
0.239
pancreatic disease
bariatric surgery
educational technology