H-Index
Rankings

Ireland 9,037 Scientists H-Index Rankings - 2025

Measure your academic influence with the AD Scientific Index 2025 H-Index Rankings.
These rankings provide a comprehensive evaluation of scientific performance by combining total and recent 6-year h-index values, offering insight into both research productivity and long-term impactThe h-index balances quantity with quality, highlighting sustained academic excellenceRankings are continuously updated in near real-time to reflect the latest scholarly activity across countries, institutions, and 211 academic fieldsPremium Membership unlocks deeper analytics, dynamic ranking tools, and personalized trend visualizations.

* Total H Index Rankings
Ranking Based On Selection: 1
Martin Grunewald
High-energy particle physic
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
259
146
0.564
* Total H Index Rankings
Ranking Based On Selection: 2
John Cryan
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacolog
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
172
135
0.785
* Total H Index Rankings
Ranking Based On Selection: 3
Da Wen Sun
cooling and drying
food quality and safety
bioprocess simulation
computer vision
hyperspectral imagin
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
168
117
0.696
* Total H Index Rankings
Ranking Based On Selection: 4
Timothy Dinan
gut microbiota
psychiatry
nutrition
psychopharmacolog
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
163
122
0.748
* Total H Index Rankings
Ranking Based On Selection: 5
Paul Ross
Microbiome
Antimicrobials
Gut health
Bacteriophage
Pathogen
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
163
106
0.650
* Total H Index Rankings
Ranking Based On Selection: 6
Rp Brennan
Neuroradiology
Stroke
Caroti
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
94
0.599
* Total H Index Rankings
Ranking Based On Selection: 7
Michael Gill
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
92
0.586
* Total H Index Rankings
Ranking Based On Selection: 8
Colin Hill
Microbiology
microbiome
bacteriophage
bacteriocins
infectio
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
151
92
0.609
* Total H Index Rankings
Ranking Based On Selection: 9
Fergus Shanahan
microbiome
IBD
mucosal immunology
microbiota
medical humanitie
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
146
81
0.555
* Total H Index Rankings
Ranking Based On Selection: 10
David A Kenny
Cattle nutrition
fertility
growth
molecular biolog
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
137
83
0.606

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H Index Rankings
Ranking Based On Selection: 11
Gerald Fitzgerald
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
126
68
0.540
* Total H Index Rankings
Ranking Based On Selection: 12
Jonathan N Coleman
Materials science
Nanoscienc
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
125
86
0.688
* Total H Index Rankings
Ranking Based On Selection: 14
Douwe Van Sinderen
Bacteriophage
lactic acid bacteria
bifidobacteria
gut microbiot
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
122
81
0.664
* Total H Index Rankings
Ranking Based On Selection: 15
Michael Zaworotko
crystal engineering
pharmaceutical materials
porous materials
pharmaceutical cocrystal
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
121
71
0.587
* Total H Index Rankings
Ranking Based On Selection: 16
Timothy Foster J
microbiolog
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
116
59
0.509
* Total H Index Rankings
Ranking Based On Selection: 17
Elke Arendt
Cereal and beverage scienc
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
115
79
0.687
* Total H Index Rankings
Ranking Based On Selection: 18
JMD Coey *
Magnetism
magnetic materials
spin electronics
magnetoelectrochemistry
mineralog
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
115
56
0.487
* Total H Index Rankings
Ranking Based On Selection: 19
PF Fox
Cheese
Milk Proteins
Heat Stability of Milk
Enzymolog
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
112
51
0.455
* Total H Index Rankings
Ranking Based On Selection: 20
Paul O Toole
Microbiome
lactobacillus
IBS
colorectal cancer
agein
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
111
83
0.748
* Total H Index Rankings
Ranking Based On Selection: 21
Kingston Mills
Immunolog
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
110
59
0.536
* Total H Index Rankings
Ranking Based On Selection: 22
Aiden Corvin
Psychosis Genomic
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
109
77
0.706
* Total H Index Rankings
Ranking Based On Selection: 23
Pat Lonergan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
106
53
0.500
* Total H Index Rankings
Ranking Based On Selection: 25
Henry Curran
Reaction kinetics
combustion science
fuels
combustion
chemical engineerin
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
105
68
0.648
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Martin Grunewald
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
259
146
0.564
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
John Cryan
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
172
135
0.785
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacolog
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Da Wen Sun
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
168
117
0.696
cooling and drying
food quality and safety
bioprocess simulation
computer vision
hyperspectral imagin
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Timothy Dinan
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
163
122
0.748
gut microbiota
psychiatry
nutrition
psychopharmacolog
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Paul Ross
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
163
106
0.650
Microbiome
Antimicrobials
Gut health
Bacteriophage
Pathogen
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Rp Brennan
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
94
0.599
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Michael Gill
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
92
0.586
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Colin Hill
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
151
92
0.609
Microbiology
microbiome
bacteriophage
bacteriocins
infectio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Fergus Shanahan
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
146
81
0.555
microbiome
IBD
mucosal immunology
microbiota
medical humanitie
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
David A Kenny
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
137
83
0.606

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Gerald Fitzgerald
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
126
68
0.540
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Jonathan N Coleman
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
125
86
0.688
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Paul Cotter
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
123
91
0.740
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Douwe Van Sinderen
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
122
81
0.664
Bacteriophage
lactic acid bacteria
bifidobacteria
gut microbiot
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Michael Zaworotko
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
121
71
0.587
crystal engineering
pharmaceutical materials
porous materials
pharmaceutical cocrystal
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Timothy Foster J
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
116
59
0.509
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Elke Arendt
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
115
79
0.687
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
JMD Coey *
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
115
56
0.487
Magnetism
magnetic materials
spin electronics
magnetoelectrochemistry
mineralog
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
PF Fox
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
112
51
0.455
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Paul O Toole
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
111
83
0.748
Microbiome
lactobacillus
IBS
colorectal cancer
agein
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Kingston Mills
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
110
59
0.536
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Aiden Corvin
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
109
77
0.706
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Pat Lonergan
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
106
53
0.500
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Brijesh K. Tiwari
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
105
80
0.762
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Henry Curran
       H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
105
68
0.648
Reaction kinetics
combustion science
fuels
combustion
chemical engineerin