Ireland's Top 2% Scientists 2026

Ireland has 995 scientists on the 2026 single-year Top 2% list, up 7.6% from 925 in 2025. That places Ireland 35th in the world by number of listed scientists, up 2 places. University College Dublin has the most listed scientists (186), followed by Trinity College Dublin (136).

Single Year

995

+70 (+7.6%) vs 2025

Career Data

963

+82 (+9.3%) vs 2025

World rank by count

#35

up 2 places vs 2025

Institutes

+5 (+5.7%) vs 2025

Scientists in Ireland on the list, by year

The single-year count has grown 70% since 2020.

Single-year list, change on the previous year

2021+21.2%

2022+6.8%

2023+2.5%

2024+8.2%

2025+10.0%

2026+7.6%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	586		547
2021	710	+21.2%	661	+20.8%
2022	758	+6.8%	721	+9.1%
2023	777	+2.5%	769	+6.7%
2024	841	+8.2%	836	+8.7%
2025	925	+10.0%	881	+5.4%
2026	995	+7.6%	963	+9.3%

Top 10 institutes in Ireland

By number of listed scientists

Single-year list2026

Show the list

All 995 scientists

Single-year list2026

Showing the 2026 single-year list. Looking for career rankings? See the career-long list

The first 100 are free to browse.

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Rank in Ireland	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	449	BG Biesta, Gert J.J.	Maynooth University	Education	Rank 7
2	461	OL O’Neill, Luke A.	Trinity College Dublin	Immunology	Rank 13
3	525	CJ Cryan, John F.	University College Cork	Neurology & Neurosurgery	Rank 29
4	628	SD Sun, Da-Wen	University College Dublin	Food Science	Rank 7
5	718	KR Kitchin, Rob	Maynooth University	Geography	Rank 4
6	985	PE Panadero, Ernesto	Dublin City University	Education	Rank 21
7	996	CJ Coey, JMD Michael David	Trinity College Dublin	Applied Physics	Rank 21
8	1,082	TB Tiwari, Brijesh Kumar	Teagasc - Irish Agriculture and Food Development Authority	Food Science	Rank 11
9	1,134	GD G. Dinan, Timothy G.	APC Microbiome Ireland	Psychiatry	Rank 31
10	1,380	BJ Butler, Judith E.	Munster Technological University (MTU)	Literary Studies	Rank 2
11	1,442	HC Hill, Colin	University College Cork	Microbiology	Rank 21
12	1,923	CJ Coleman, Jonathan N.	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 55
13	3,217	MK Mills, Kingston H.G.	Trinity College Dublin	Immunology	Rank 62
14	3,614	OF O’Brien, Fergal J.	Royal College of Surgeons in Ireland	Biomedical Engineering	Rank 10
15	3,976	BF Boukid, Fatma	Clonbio Group Ltd.	Food Science	Rank 29
16	4,168	WJ Walter, Jens W.	University College Cork	Microbiology	Rank 63
17	4,285	SE Souto, Eliana B.	University College Dublin	Pharmacology & Pharmacy	Rank 25
18	4,320	Ali, Faizan	J.E. Cairnes School of Business & Economics	Sport, Leisure & Tourism	Rank 27
19	4,563	DM Duffy, Michael Joseph	St Vincent's University Hospital	Oncology & Carcinogenesis	Rank 117
20	5,073	OP O’Toole, Paul W. William	APC Microbiome Ireland	Microbiology	Rank 70
21	5,080	CP Cotter, Paul D.	University College Cork	Microbiology	Rank 71
22	5,730	SP Serruys, Patrick W.	University of Galway	Cardiovascular System & Hematology	Rank 172
23	6,382	MF Milano, Federico	University College Dublin	Energy	Rank 162
24	7,080	GV Gupta, Vijai Kumar	Dublin City University	Biotechnology	Rank 24
25	7,195	CI Coyne, Imelda T.	Trinity College Dublin	Nursing	Rank 12
26	7,454	DM Daly, Michael J.	Maynooth University	Public Health	Rank 73
27	7,685	LB Lucey, Brian M.	Trinity College Dublin	Finance	Rank 43
28	7,704	GV Glaveanu, Vlad Petre	Dublin City University	Social Psychology	Rank 191
29	7,903	GE Gregg, Edward W.	Royal College of Surgeons in Ireland	Endocrinology & Metabolism	Rank 134
30	7,920	SF Shanahan, Fergus L.	APC Microbiome Ireland	Gastroenterology & Hepatology	Rank 99
31	8,002	BR Byrne, Robert A.	Mater Private Hospital Dublin	Cardiovascular System & Hematology	Rank 246
32	8,087	CH Curran, Henry J.	University of Galway	Energy	Rank 213
33	8,132	DJ Danaher, John	University of Galway	Applied Ethics	Rank 9
34	8,239	BA Barhoum, Ahmed	Technological University Dublin	Nanoscience & Nanotechnology	Rank 270
35	8,286	HM Hayes, Maria	Teagasc - Irish Agriculture and Food Development Authority	Food Science	Rank 78
36	9,119	VJ Vink, Jorick S.	Armagh Observatory and Planetarium	Astronomy & Astrophysics	Rank 84
37	9,136	SS Sanvito, Stefano	Trinity College Dublin	Applied Physics	Rank 178
38	9,694	MW McNicholas, Walter T.	University College Dublin	Respiratory System	Rank 45
39	9,894	BA Birhane, Abeba	Trinity College Dublin	Artificial Intelligence & Image Processing	Rank 518
40	10,059	MI Martin-loeches, Ignacio	St James's Hospital	Emergency & Critical Care Medicine	Rank 27
41	10,128	CG Clarke, Gerard	University College Cork	Neurology & Neurosurgery	Rank 501
42	10,486	MS Moslem, Sarbast	University College Dublin	Artificial Intelligence & Image Processing	Rank 550
43	10,782	DH Duncan, Henry (Hal)	Dublin Dental University Hospital	Dentistry	Rank 34
44	11,180	TC Taylor, Cormac T.	UCD School of Medicine	Biochemistry & Molecular Biology	Rank 163
45	11,350	OM O'Donnell, Martin J.	University of Galway	General & Internal Medicine	Rank 202
46	11,462	RP Ross, Paul R.	APC Microbiome Ireland	Microbiology	Rank 190
47	11,639	RN Rowan, Neil J.	Technological University of the Shannon: Midlands Midwest (TUS)	Environmental Sciences	Rank 256
48	12,135	JA Jaiswal, Amit K.	Technological University Dublin	Food Science	Rank 120
49	12,164	CK Cashman, Kevin D.	University College Cork	Nutrition & Dietetics	Rank 76
50	12,487	CF Cugurullo, Federico	Trinity College Dublin	Urban & Regional Planning	Rank 39
51	12,758	TD Taylor, David	Trinity College Dublin	Mechanical Engineering & Transports	Rank 111
52	13,143	WM Wright, Michelle F.	Dublin City University	Developmental & Child Psychology	Rank 118
53	13,363	BS Bhattacharjee, Sourav	University College Dublin	Pharmacology & Pharmacy	Rank 66
54	14,009	GM Garvey, Mary	Atlantic Technological University	Microbiology	Rank 238
55	14,230	LR Le Roux, Carel W.	University College Dublin	Endocrinology & Metabolism	Rank 226
56	14,456	FD Flitcroft, Daniel Ian	Technological University Dublin	Ophthalmology & Optometry	Rank 44
57	14,758	SC Stanton, Catherine S.	Teagasc - Irish Agriculture and Food Development Authority	Microbiology	Rank 257
58	14,850	CS Corbet, Shaen	DCU Business School	Finance	Rank 79
59	15,296	HO Hardiman, Orla M.	Trinity College Dublin	Neurology & Neurosurgery	Rank 717
60	15,727	TD Tobin, Desmond J.	UCD School of Medicine	Dermatology & Venereal Diseases	Rank 47
61	15,786	TV Tawiah, Vincent Konadu	Dublin City University	Environmental Sciences	Rank 339
62	15,974	BD Berry, Donagh P.	Moorepark Animal & Grassland Research Centre	Dairy & Animal Science	Rank 25
63	15,998	LL Longo, Luca	University College Cork	Artificial Intelligence & Image Processing	Rank 838
64	16,327	CD Collings, David G.	Trinity Business School	Business & Management	Rank 488
65	16,860	OD O'Mahony, Denis	Cork University Hospital	Geriatrics	Rank 31
66	16,900	RY Roos, Yrjo Henrik	University College Cork	Food Science	Rank 169
67	16,975	CA Carr, Alan	University College Dublin	Family Studies	Rank 4
68	17,126	PQ Pham, Quoc Viet	Trinity College Dublin	Networking & Telecommunications	Rank 172
69	17,278	GM García-Vaquero, Marco	University College Dublin	Food Science	Rank 175
70	17,348	MS More, Simon John	University College Dublin	Veterinary Sciences	Rank 6
71	17,440	AE Arendt, Elke Karin	APC Microbiome Ireland	Food Science	Rank 178
72	18,274	FP Fox, Patrick F.	University College Cork	Dairy & Animal Science	Rank 30
73	18,381	GS Ghosh, Subrata	APC Microbiome Ireland	Gastroenterology & Hepatology	Rank 215
74	18,671	Liyanage, Madhusanka	University College Dublin	Networking & Telecommunications	Rank 187
75	18,686	LL Lundy, Laura	University College Cork	Social Work	Rank 3
76	18,961	NV Nicolosi, Valeria	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 624
77	19,197	BC Burgess, Clifford P.	Institiúid Ard-Lénn Bhaile Átha Cliath	Nuclear & Particle Physics	Rank 233
78	19,345	CB Caulfield, Brian Michael	University College Dublin	Biomedical Engineering	Rank 63
79	19,359	LM Lynch, Marina A.	Trinity College Dublin	Neurology & Neurosurgery	Rank 901
80	19,467	LB Leonard., Brian E.	University of Galway	Psychiatry	Rank 360
81	19,829	CK Conboy, Kieran	University of Galway	Information Systems	Rank 82
82	19,927	CT Conley, Timothy G.	University College Dublin	Economics	Rank 302
83	20,020	MP McSweeney, Paul L.H.	University College Cork	Dairy & Animal Science	Rank 32
84	20,068	WR Whelan, Robert	Trinity College Dublin	Neurology & Neurosurgery	Rank 928
85	20,254	CC Cunningham, Colm M.	Trinity College Dublin	Neurology & Neurosurgery	Rank 938
86	20,485	IA Irvine, Alan D.	Trinity College Dublin	Dermatology & Venereal Diseases	Rank 66
87	20,639	SJ Stephens, Jennie Catherine	Maynooth University	Energy	Rank 554
88	20,702	WK Wolfe, Kenneth H.	UCD School of Medicine	Developmental Biology	Rank 492
89	20,793	DM Dowling, Michael Mark	DCU Business School	Finance	Rank 103
90	20,873	PM Popović, Maja	Dublin City University	Artificial Intelligence & Image Processing	Rank 1,064
91	21,509	FR FitzGerald, Richard J.	University of Limerick	Food Science	Rank 228
92	21,525	HP Hyland, Philip E.	Maynooth University	Psychiatry	Rank 400
93	21,671	FP Forde, Patrick M.	Trinity College Dublin	Oncology & Carcinogenesis	Rank 653
94	21,793	KR Kenny, Rose Anne	St James's Hospital	Geriatrics	Rank 36
95	21,894	DK Dawson, Kenneth A.	University College Dublin	Nanoscience & Nanotechnology	Rank 738
96	21,997	JA Joulin, Armand	Google LLC, Europe	Artificial Intelligence & Image Processing	Rank 1,119
97	22,203	BC Brunsdon, Chris F.	Maynooth University	Geological & Geomatics Engineering	Rank 257
98	22,249	ZA Zhu, Anding	University College Dublin	Networking & Telecommunications	Rank 222
99	23,155	BB Becker, Brett A.	University College Dublin	Education	Rank 334
100	23,332	CM Collins, Maurice N.	University of Limerick	Polymers	Rank 163
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You are seeing the first 100. 895 more are on the 2026 single-year list.

Ranks 101 to 995The whole list, not only the top 100.

Every year since 2020Single Year and Career Data.

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Countries with a similar count

Single-year list2026

Portugal1,060 scientists

Pakistan1,034 scientists

South Africa1,033 scientists

Russia989 scientists

New Zealand971 scientists

Malaysia941 scientists

Explore other countries

Single-year list2026

United Kingdom18,300 scientists

Sweden2,728 scientists

Denmark2,138 scientists

Norway1,307 scientists

Finland1,274 scientists

Estonia116 scientists

All countries on the world map

Frequently asked questions

How many scientists from Ireland are in the 2026 Stanford Top 2% list?

995 scientists affiliated with Ireland are on the 2026 single-year list, and 963 are on the career-long list.

Which institute in Ireland has the most Top 2% scientists?

On the 2026 single-year list, University College Dublin has the most listed scientists from Ireland, with 186. It is followed by Trinity College Dublin with 136.

How has the number of Top 2% scientists in Ireland changed since 2020?

On the single-year list, Ireland went from 586 scientists in 2020 to 995 in 2026, a change of +69.8%.

What is the difference between the single-year and career-long lists?

The single-year list ranks scientists on the citations their work received in one year. The career-long list ranks them on citations across their whole career. Both lists are published every year, and a scientist can be on one, both or neither.

What is the official source of this data?

The rankings come from the science-wide author databases of standardized citation indicators published by Ioannidis et al. in the Elsevier Data Repository, updated every year. TOPSCINET, an independent platform, organises that data by country, year, institute and field, so you can compare and explore it.