Ireland's Top 2% Scientists 2022: Career-Long List

Ireland has 721 scientists on the 2022 career-long Top 2% list, up 9.1% from 661 in 2021. That places Ireland 32nd in the world by number of listed scientists. University College Dublin has the most listed scientists (122), followed by Trinity College Dublin (114).

Single Year

758

+48 (+6.8%) vs 2021

Career Data

721

+60 (+9.1%) vs 2021

World rank by count

#32

No change vs 2021

Institutes

103

+12 (+13.2%) vs 2021

Scientists in Ireland on the list, by year

The career-long count has grown 32% 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 list2022

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All 721 scientists

Career-long list2022

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	373	OL O'Neill, Luke A.J.	Trinity College Dublin	Immunology	Rank 24
2	621	CJ Coey, J. M.D.	Trinity College Dublin	Applied Physics	Rank 26
3	628	SP Serruys, Patrick W.	University of Galway	Cardiovascular System & Hematology	Rank 34
4	1,299	GF Geels, Frank W.	Alliance Manchester Business School	Science Studies	Rank 2
5	1,321	CJ Coleman, Jonathan N.	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 36
6	1,769	SF Shanahan, F.	APC Microbiome Ireland	Gastroenterology & Hepatology	Rank 25
7	2,204	ZM Zaworotko, Michael	University of Limerick	Organic Chemistry	Rank 64
8	2,534	DT Dinan, Timothy G.	APC Microbiome Ireland	Psychiatry	Rank 81
9	2,725	DM Duffy, Michael J.	St Vincent's University Hospital	Oncology & Carcinogenesis	Rank 122
10	4,064	HD Higgins, Desmond G.	UCD School of Medicine	Bioinformatics	Rank 14
11	4,065	EH Eysenck, H. J.	King's College London	Social Psychology	Rank 60
12	4,252	WK Wolfe, Kenneth H.	UCD School of Medicine	Developmental Biology	Rank 233
13	4,267	MS Martin, Seamus J.	Trinity College Dublin	Biochemistry & Molecular Biology	Rank 223
14	4,737	OE O'Brien, Eoin	University College Dublin	Cardiovascular System & Hematology	Rank 242
15	5,090	KW Kolch, Walter	University College Dublin	Biochemistry & Molecular Biology	Rank 257
16	5,523	VM van Mechelen, Willem	University College Dublin	Sport Sciences	Rank 15
17	5,861	LB Leonard, Brian E.	University of Galway	Psychiatry	Rank 166
18	5,882	OP O'Brien, Peter J.	University College Dublin	Biochemistry & Molecular Biology	Rank 311
19	6,316	CJ Cryan, John F.	APC Microbiome Ireland	Neurology & Neurosurgery	Rank 564
20	6,349	BR Bentall, Richard	The University of Sheffield	Psychiatry	Rank 187
21	6,463	MK Mills, Kingston H.G.	Trinity College Dublin	Immunology	Rank 253
22	6,529	HC Hill, Colin	APC Microbiome Ireland	Microbiology	Rank 163
23	6,988	GI Greer, Ian	Queen's University Belfast	Obstetrics & Reproductive Medicine	Rank 31
24	7,145	KR Kitchin, Rob	Maynooth University	Geography	Rank 15
25	7,604	DS de Silva, A. Prasanna	Queen's University Belfast	Organic Chemistry	Rank 165
26	7,771	WJ Willis, J. R.	Centre for Mathematical Sciences	Mechanical Engineering & Transports	Rank 44
27	8,000	OF O'Brien, Fergal J.	Trinity College Dublin	Biomedical Engineering	Rank 31
28	8,316	BG BIESTA, Gert	Maynooth University	Education	Rank 21
29	8,789	RI Robertson, Ian H.	Trinity College Dublin	Experimental Psychology	Rank 139
30	9,649	FM Ferguson, Mark W.J.	Science Foundation Ireland	Developmental Biology	Rank 481
31	10,006	LM Lynch, Marina A.	Trinity College Dublin	Neurology & Neurosurgery	Rank 869
32	10,030	SS Sanvito, Stefano	Trinity College Dublin	Applied Physics	Rank 267
33	10,498	IR Irvine, Robin	Dept of Pharmacology	Biochemistry & Molecular Biology	Rank 544
34	10,605	PN Pidgeon, Nick	College of Biomedical and Life Sciences	Environmental Sciences	Rank 43
35	11,230	TD Taylor, David	Trinity College Dublin	Mechanical Engineering & Transports	Rank 72
36	11,407	LJ Luong, John H.T.	University College Cork	Analytical Chemistry	Rank 58
37	11,642	CH Curran, Henry J.	University of Galway	Energy	Rank 106
38	12,389	RY Roos, Yrjö H.	University College Cork	Food Science	Rank 36
39	12,653	WW Wijns, William	University of Galway	Cardiovascular System & Hematology	Rank 601
40	13,226	MW McNicholas, Walter T.	St Vincent's University Hospital	Respiratory System	Rank 135
41	13,406	CS Connon, Stephen J.	Trinity College Dublin	Organic Chemistry	Rank 299
42	14,046	CT Cotter, Thomas G.	University College Cork	Biochemistry & Molecular Biology	Rank 721
43	15,232	GT Gunnlaugsson, Thorfinnur	Trinity College Dublin	Organic Chemistry	Rank 340
44	15,245	HM Hutton, Michael	St Vincent's University Hospital	Neurology & Neurosurgery	Rank 1,270
45	15,272	CP Cloke, Paul	University of Exeter	Geography	Rank 36
46	15,303	KB Kholodenko, Boris N.	University College Dublin	Biochemistry & Molecular Biology	Rank 780
47	15,394	CJ Conlon, J. Michael	Ulster University	Endocrinology & Metabolism	Rank 428
48	15,515	OD O'Regan, Donal	University of Galway	General Mathematics	Rank 38
49	15,750	RR Ross, R. Paul	APC Microbiome Ireland	Microbiology	Rank 371
50	16,488	WM Wilm, Matthias	University College Dublin	Developmental Biology	Rank 707
51	16,629	DK Dawson, Kenneth A.	University College Dublin	Nanoscience & Nanotechnology	Rank 180
52	17,161	CP Cotter, Paul	Moorepark Food Research Centre	Microbiology	Rank 411
53	17,319	DG Dickens, Gerald R.	Trinity College Dublin	Geochemistry & Geophysics	Rank 266
54	17,479	GI Graham, Ian	Trinity College Dublin	Cardiovascular System & Hematology	Rank 770
55	17,518	WJ Waddington, John L.	Royal College of Surgeons in Ireland	Psychiatry	Rank 471
56	17,551	SJ Scott, John M.	School of Medicine, Trinity College Dublin	Nutrition & Dietetics	Rank 135
57	17,740	NP Nigam, Poonam S.	Ulster University	Biotechnology	Rank 40
58	17,754	CM Caffrey, Martin	School of Medicine, Trinity College Dublin	Biophysics	Rank 29
59	17,894	BB Bresnihan, Barry	University College Dublin	Arthritis & Rheumatology	Rank 149
60	19,036	KR Kenny, Rose Anne	Trinity College Dublin	Geriatrics	Rank 29
61	19,188	PP Puri, Prem	University College Dublin	Pediatrics	Rank 78
62	19,214	OS Ormerod, S. J.	Cardiff University	Marine Biology & Hydrobiology	Rank 125
63	19,385	CR Chetty, Runjan	Pathology	Pathology	Rank 68
64	19,634	LP Lonergan, Patrick	University College Dublin	Obstetrics & Reproductive Medicine	Rank 145
65	19,827	TB Tiwari, Brijesh	Moorepark Food Research Centre	Food Science	Rank 60
66	20,215	BJ Boland, John J.	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 216
67	21,009	CK Cashman, Kevin D.	University College Cork	Nutrition & Dietetics	Rank 166
68	21,055	GS Ghosh, Subrata	APC Microbiome Ireland	Gastroenterology & Hepatology	Rank 331
69	21,683	ME Morris, Edwin R.	University College Cork	Polymers	Rank 191
70	21,744	DC Dorman, Charles J.	Trinity College Dublin	Microbiology	Rank 533
71	21,781	SM Senge, Mathias O.	Trinity College Dublin	Organic Chemistry	Rank 456
72	22,390	MP McSweeney, Paul L.H.	University College Cork	Dairy & Animal Science	Rank 31
73	23,482	MB McCleary, B.	Co. Wicklow	Food Science	Rank 75
74	24,147	TD Tobin, Desmond J.	University College Dublin	Dermatology & Venereal Diseases	Rank 115
75	24,805	LP Lane, Philip R.	Trinity College Dublin	Economics	Rank 201
76	25,587	TC Taylor, Cormac T.	UCD School of Medicine	Biochemistry & Molecular Biology	Rank 1,224
77	25,694	HO Hardiman, O.	Trinity College Dublin	Neurology & Neurosurgery	Rank 2,030
78	26,061	AR Anwyl, Roger	Trinity College Dublin	Neurology & Neurosurgery	Rank 2,050
79	26,171	FP Fallon, Padraic G.	School of Medicine, Trinity College Dublin	Immunology	Rank 902
80	27,496	JA Jones, A. G.	Dublin Institute for Advanced Studies	Geochemistry & Geophysics	Rank 455
81	27,577	BT Burt, T. P.	University of Durham	Environmental Engineering	Rank 98
82	27,632	GG Guilbault, George G.	University College Cork	Analytical Chemistry	Rank 164
83	28,171	WJ Walter, Jens	APC Microbiome Ireland	Microbiology	Rank 705
84	28,333	CK Conlon, Kevin C.	Tallaght University Hospital	Surgery	Rank 231
85	29,311	PJ Prehn, Jochen H.M.	Royal College of Surgeons in Ireland	Neurology & Neurosurgery	Rank 2,250
86	29,434	CJ Crown, John	St Vincent's University Hospital	Oncology & Carcinogenesis	Rank 1,343
87	29,531	DL Drury, Luke	Dublin Institute for Advanced Studies	Astronomy & Astrophysics	Rank 320
88	29,731	SB Smyth, Barry	University College Dublin	Artificial Intelligence & Image Processing	Rank 563
89	30,111	BF Barry, Frank	University of Galway	Biomedical Engineering	Rank 127
90	30,228	BA Bowie, Andrew G.	Trinity College Dublin	Immunology	Rank 1,018
91	30,238	FR FitzGerald, Richard J.	University of Limerick	Food Science	Rank 104
92	30,560	FB Fitzgerald, Brian	University of Limerick	Software Engineering	Rank 58
93	31,185	PI Perry, Ivan J.	University College Cork	General & Internal Medicine	Rank 422
94	31,938	CR Conroy, Ronán M.	Royal College of Surgeons in Ireland	General & Internal Medicine	Rank 436
95	32,139	GM Gill, Michael	School of Medicine, Trinity College Dublin	Psychiatry	Rank 728
96	32,540	OC O'Dowd, Colin	University of Galway	Meteorology & Atmospheric Sciences	Rank 451
97	33,132	DJ Davenport, John	University College Cork	Marine Biology & Hydrobiology	Rank 238
98	33,570	HB Hathaway, Brian J.	University College Cork	Inorganic & Nuclear Chemistry	Rank 203
99	33,934	LB Lawlor, Brian	Trinity College Dublin	Geriatrics	Rank 55
100	34,108	GM Gibney, Mike	University College Dublin	Nutrition & Dietetics	Rank 255
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Countries with a similar count

Career-long list2022

Russia887 scientistsin 2022

Greece879 scientistsin 2022

Iran742 scientistsin 2022

South Africa713 scientistsin 2022

Portugal515 scientistsin 2022

Saudi Arabia466 scientistsin 2022

Explore other countries

Career-long list2022

United Kingdom17,986 scientistsin 2022

Sweden3,108 scientistsin 2022

Denmark1,955 scientistsin 2022

Finland1,304 scientistsin 2022

Norway1,253 scientistsin 2022

Estonia56 scientistsin 2022

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Frequently asked questions

How many scientists from Ireland are in the 2022 Stanford Top 2% list?

758 scientists affiliated with Ireland are on the 2022 single-year list, and 721 are on the career-long list.

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

On the 2022 career-long list, University College Dublin has the most listed scientists from Ireland, with 122. It is followed by Trinity College Dublin with 114.

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 721 in 2022, a change of +31.8%.

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.