Ireland's Top 2% Scientists 2024: Career-Long List

Ireland has 836 scientists on the 2024 career-long Top 2% list, up 8.7% from 769 in 2023. That places Ireland 32nd in the world by number of listed scientists, up 1 place. University College Dublin has the most listed scientists (168), followed by Trinity College Dublin (155).

Single Year

841

+64 (+8.2%) vs 2023

Career Data

836

+67 (+8.7%) vs 2023

World rank by count

#32

up 1 place vs 2023

Institutes

+1 (+1.1%) vs 2023

Scientists in Ireland on the list, by year

The career-long count has grown 53% since 2020.

Career-long list, change on the previous year

2021+20.8%

2022+9.1%

2023+6.7%

2024+8.7%

2025+5.4%

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%

Top 10 institutes in Ireland

By number of listed scientists

Career-long list2024

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All 836 scientists

Career-long list2024

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	335	OL O'Neill, Luke A.J.	Trinity College Dublin	Immunology	Rank 22
2	416	SP Serruys, Patrick	University of Galway	Cardiovascular System & Hematology	Rank 20
3	627	CJ Coey, J. M.D.	Trinity College Dublin	Applied Physics	Rank 26
4	1,236	CJ Coleman, Jonathan N.	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 36
5	1,531	SD Sun, Da Wen	University College Dublin	Food Science	Rank 4
6	1,552	DT Dinan, Timothy G.	APC Microbiome Ireland	Psychiatry	Rank 54
7	1,786	SF Shanahan, Fergus	APC Microbiome Ireland	Gastroenterology & Hepatology	Rank 26
8	1,802	SR Strieter, Robert M.	University College Dublin	Immunology	Rank 69
9	2,421	ZM Zaworotko, Michael J.	University of Limerick	Organic Chemistry	Rank 68
10	2,638	DM Duffy, Michael J.	University College Dublin	Oncology & Carcinogenesis	Rank 114
11	4,151	CJ Cryan, John F.	APC Microbiome Ireland	Neurology & Neurosurgery	Rank 366
12	4,199	BG Biesta, Gert	Maynooth University	Education	Rank 13
13	4,563	HC Hill, Colin	APC Microbiome Ireland	Microbiology	Rank 110
14	4,657	KR Kitchin, Rob	Maynooth University	Geography	Rank 10
15	4,678	HD Higgins, Desmond G.	University College Dublin	Bioinformatics	Rank 17
16	4,718	WK Wolfe, Kenneth H.	University College Dublin	Developmental Biology	Rank 240
17	5,236	MS Martin, Seamus J.	Trinity College Dublin	Biochemistry & Molecular Biology	Rank 241
18	5,630	OE O'Brien, Eoin	University College Dublin	Cardiovascular System & Hematology	Rank 281
19	5,795	KW Kolch, Walter	University College Dublin	Biochemistry & Molecular Biology	Rank 265
20	6,116	OF O'Brien, Fergal J.	Royal College of Surgeons in Ireland	Biomedical Engineering	Rank 25
21	6,171	MK Mills, Kingston H.G.	Trinity College Dublin	Immunology	Rank 245
22	6,321	LB Leonard, Brian E.	University of Galway	Psychiatry	Rank 183
23	6,479	OP O'Brien, Peter J.	University College Dublin	Biochemistry & Molecular Biology	Rank 312
24	7,877	FP Fox, P. F.	University College Cork	Dairy & Animal Science	Rank 6
25	8,259	RJ Rusling, James F.	University of Galway	Analytical Chemistry	Rank 38
26	9,080	DS de Silva, A. Prasanna	Queen's University Belfast	Organic Chemistry	Rank 196
27	9,313	RI Robertson, Ian H.	Trinity College Dublin	Experimental Psychology	Rank 157
28	9,469	SS Sanvito, Stefano	Trinity College Dublin	Applied Physics	Rank 247
29	9,584	LM Lynch, Marina A.	Trinity College Dublin	Neurology & Neurosurgery	Rank 808
30	9,799	BM Buchheit, Martin	Performance Research Intelligence Initiative	Sport Sciences	Rank 31
31	10,345	TB Tiwari, Brijesh K.	Moorepark Food Research Centre	Food Science	Rank 34
32	10,428	CH Curran, Henry	University of Galway	Energy	Rank 110
33	10,739	KP Kelly, Patrick	Trinity College Dublin	Neurology & Neurosurgery	Rank 892
34	11,110	TD Taylor, David	Trinity College Dublin	Mechanical Engineering & Transports	Rank 74
35	11,431	CJ Colinge, J. P.	Tyndall National Institute	Applied Physics	Rank 285
36	11,581	LJ Luong, John H.T.	University College Cork	Analytical Chemistry	Rank 60
37	12,161	RY Roos, Yrjö H.	University College Cork	Food Science	Rank 42
38	12,233	CP Cotter, Paul D.	Moorepark Food Research Centre	Microbiology	Rank 286
39	12,686	BL Briand, Lionel	University of Limerick	Software Engineering	Rank 7
40	12,808	MW McNicholas, Walter T.	University College Dublin	Respiratory System	Rank 126
41	13,036	AJ Alexander, J.	Trinity College Dublin	Surgery	Rank 86
42	13,608	WW Wijns, William	University of Galway	Cardiovascular System & Hematology	Rank 623
43	14,235	RR Ross, R. Paul	APC Microbiome Ireland	Microbiology	Rank 341
44	15,235	OD O’Regan, Donal	University of Galway	General Mathematics	Rank 38
45	15,503	CS Connon, Stephen J.	Trinity College Dublin	Organic Chemistry	Rank 336
46	15,816	CT Cotter, Thomas G.	University College Cork	Biochemistry & Molecular Biology	Rank 742
47	16,340	KB Kholodenko, Boris N.	University College Dublin	Biochemistry & Molecular Biology	Rank 766
48	16,584	GT Gunnlaugsson, Thorfinnur	Trinity College Dublin	Organic Chemistry	Rank 357
49	16,628	CK Cashman, Kevin D.	University College Cork	Nutrition & Dietetics	Rank 126
50	17,168	HM Hutton, Michael	St Vincent's University Hospital	Neurology & Neurosurgery	Rank 1,358
51	17,290	GI Graham, Ian M.	Trinity College Dublin	Cardiovascular System & Hematology	Rank 765
52	17,418	KR Kenny, Rose Anne	Trinity College Dublin	Geriatrics	Rank 27
53	17,554	DK Dawson, Kenneth A.	University College Dublin	Nanoscience & Nanotechnology	Rank 228
54	17,837	MR Murphy, Robert	University of Galway	Biochemistry & Molecular Biology	Rank 831
55	18,235	PP Puri, Prem	University College Dublin	Pediatrics	Rank 70
56	18,433	DG Dickens, G. R.	Trinity College Dublin	Geochemistry & Geophysics	Rank 287
57	19,138	GS Ghosh, Subrata	University College Cork	Gastroenterology & Hepatology	Rank 300
58	19,149	LP Lonergan, Patrick	University College Dublin	Dairy & Animal Science	Rank 22
59	19,321	WM Wilm, Matthias	University College Dublin	Developmental Biology	Rank 775
60	19,327	WJ Waddington, John L.	Royal College of Surgeons in Ireland	Psychiatry	Rank 501
61	19,413	CM Caffrey, Martin	Trinity College Dublin	Biophysics	Rank 32
62	19,827	SJ Scott, John M.	Trinity College Dublin	Nutrition & Dietetics	Rank 156
63	19,967	MP McSweeney, Paul L.H.	University College Cork	Dairy & Animal Science	Rank 24
64	20,311	BB Bresnihan, Barry	University College Dublin	Arthritis & Rheumatology	Rank 166
65	20,415	WJ Walter, Jens	University College Cork	Microbiology	Rank 504
66	21,110	HO Hardiman, Orla	Trinity College Dublin	Neurology & Neurosurgery	Rank 1,652
67	21,124	SM Senge, Mathias O.	Trinity College Dublin	Organic Chemistry	Rank 435
68	21,517	BJ Boland, John	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 282
69	21,663	MH Moulin, Hervé	University of Glasgow	Economic Theory	Rank 1
70	21,703	TD Tobin, Desmond J.	University College Dublin	Dermatology & Venereal Diseases	Rank 103
71	22,217	DC Dorman, Charles J.	Trinity College Dublin	Microbiology	Rank 547
72	22,908	ME Morris, Edwin R.	University College Cork	Polymers	Rank 192
73	23,044	TC Taylor, Cormac T.	University College Dublin	Biochemistry & Molecular Biology	Rank 1,039
74	24,886	RL Rezzolla, Luciano	Trinity College Dublin	Nuclear & Particle Physics	Rank 348
75	24,970	MB McCleary, Barry V.	Fibercarb	Food Science	Rank 98
76	25,392	FR FitzGerald, Richard J.	University of Limerick	Food Science	Rank 104
77	25,896	OP O'Toole, Paul W.	APC Microbiome Ireland	Microbiology	Rank 646
78	26,397	FP Fallon, Padraic G.	Trinity College Dublin	Immunology	Rank 882
79	26,945	JA Jones, Alan G.	Institiúid Ard-Lénn Bhaile Átha Cliath	Geochemistry & Geophysics	Rank 441
80	27,295	CI Coyne, Imelda	Trinity College Dublin	Nursing	Rank 28
81	27,644	MF Milano, Federico	University College Dublin	Energy	Rank 314
82	28,020	FB Fitzgerald, Brian	Lero - The Irish Software Engineering Research Centre	Software Engineering	Rank 47
83	28,677	CJ Crown, John	St Vincent's University Hospital	Oncology & Carcinogenesis	Rank 1,291
84	29,615	PJ Prehn, Jochen H.M.	Royal College of Surgeons in Ireland	Neurology & Neurosurgery	Rank 2,208
85	29,673	CK Conlon, K.	Trinity College Dublin	Surgery	Rank 227
86	29,860	BA Bowie, Andrew G.	Trinity College Dublin	Immunology	Rank 971
87	30,285	BF Barry, Frank	University of Galway	Biomedical Engineering	Rank 125
88	30,389	CR Conroy, Ronán M.	Royal College of Surgeons in Ireland	General & Internal Medicine	Rank 425
89	30,428	PI Perry, Ivan J.	University College Cork	General & Internal Medicine	Rank 428
90	30,953	SB Smyth, Barry	University College Dublin	Artificial Intelligence & Image Processing	Rank 647
91	30,961	IA Irvine, Alan David	Trinity College Dublin	Dermatology & Venereal Diseases	Rank 162
92	32,427	AR Anwyl, Roger	Trinity College Dublin	Neurology & Neurosurgery	Rank 2,389
93	32,571	NM Nolan, Michael	Tyndall National Institute	Chemical Physics	Rank 710
94	33,095	OC O'Dowd, Colin	University of Galway	Meteorology & Atmospheric Sciences	Rank 474
95	33,186	KJ Kerry, Joseph P.	University College Cork	Food Science	Rank 130
96	33,659	DL Drury, Luke	Institiúid Ard-Lénn Bhaile Átha Cliath	Astronomy & Astrophysics	Rank 365
97	33,877	MN McElvaney, Noel G.	Royal College of Surgeons in Ireland	Respiratory System	Rank 338
98	34,206	WG Walsh, Gary	University of Limerick	Biotechnology	Rank 86
99	35,225	LP Lens, Piet N.L.	University of Galway	Biotechnology	Rank 87
100	35,282	GM Gill, Michael	Trinity College Dublin	Psychiatry	Rank 773
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Every year since 2020Single Year and Career Data.

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Countries with a similar count

Career-long list2024

Singapore1,023 scientistsin 2024

Iran1,020 scientistsin 2024

Russia980 scientistsin 2024

South Africa826 scientistsin 2024

Saudi Arabia676 scientistsin 2024

Portugal633 scientistsin 2024

Explore other countries

Career-long list2024

United Kingdom19,646 scientistsin 2024

Sweden3,353 scientistsin 2024

Denmark2,114 scientistsin 2024

Finland1,445 scientistsin 2024

Norway1,397 scientistsin 2024

Estonia70 scientistsin 2024

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Frequently asked questions

How many scientists from Ireland are in the 2024 Stanford Top 2% list?

841 scientists affiliated with Ireland are on the 2024 single-year list, and 836 are on the career-long list.

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

On the 2024 career-long list, University College Dublin has the most listed scientists from Ireland, with 168. It is followed by Trinity College Dublin with 155.

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

On the career-long list, Ireland went from 547 scientists in 2020 to 836 in 2024, a change of +52.8%.

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.