Ireland's Top 2% Scientists 2020

Ireland has 586 scientists on the 2020 single-year Top 2% list. That places Ireland 33rd in the world by number of listed scientists. Trinity College Dublin has the most listed scientists (108), followed by University College Dublin (107).

Single Year

586

First year listed

Career Data

547

First year listed

World rank by count

#33

First year listed

Institutes

First year listed

Scientists in Ireland on the list, by year

Single-year list, change on the previous year

2021+21.2%

2022+6.8%

2023+2.5%

2024+8.2%

2025+10.0%

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

Single-year list2020

Show the list

1Trinity College Dublin108
2University College Dublin107
3National University of Ireland Galway56
4University College Cork53
5University of Limerick37
6Royal College of Surgeons in Ireland (RCSI)18
7Dublin City University17
8Maynooth University16
9Moorepark Food Research Centre14
10APC Microbiome Ireland12

All 586 scientists

Single-year list2020

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	293	CJ Coleman, Jonathan N.	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 17
2	346	OL O'Neill, Luke A.J.	Trinity College Dublin	Immunology	Rank 9
3	614	CJ Coey, J. M.D.	Trinity College Dublin	Applied Physics	Rank 26
4	1,203	KR Kitchin, Rob	Maynooth University	Geography	Rank 4
5	1,344	DT Dinan, Timothy G.	APC Microbiome Ireland	Psychiatry	Rank 36
6	1,495	CJ Cryan, John F.	University College Cork	Neurology & Neurosurgery	Rank 104
7	1,584	OF O'Brien, Fergal J.	Royal College of Surgeons in Ireland (RCSI)	Biomedical Engineering	Rank 8
8	2,693	BG Biesta, Gert	Maynooth University	Education	Rank 16
9	3,260	TB Tiwari, Brijesh	Moorepark Food Research Centre	Food Science	Rank 13
10	3,575	DM Duffy, Michael J.	St Vincent's University Hospital	Oncology & Carcinogenesis	Rank 123
11	3,664	CH Curran, H. J.	National University of Ireland Galway	Energy	Rank 74
12	3,921	TV Torra, Vicenç	Maynooth University	Artificial Intelligence & Image Processing	Rank 139
13	3,989	HC Hill, Colin	APC Microbiome Ireland	Microbiology	Rank 64
14	4,757	CP Cotter, Paul D.	APC Microbiome Ireland	Microbiology	Rank 76
15	4,934	SF Shanahan, F.	APC Microbiome Ireland	Gastroenterology & Hepatology	Rank 55
16	5,639	TJ Thome, J. R.	University of Edinburgh	Mechanical Engineering & Transports	Rank 55
17	6,271	TD Taylor, David	Trinity College Dublin	Mechanical Engineering & Transports	Rank 60
18	6,800	FT Foster, Timothy J.	Trinity College Dublin	Microbiology	Rank 121
19	7,022	ZM Zaworotko, Michael J.	University of Limerick	Organic Chemistry	Rank 117
20	7,311	VM van Mechelen, Willem	University College Dublin	Sport Sciences	Rank 26
21	7,347	SS Sanvito, S.	Trinity College Dublin	Applied Physics	Rank 159
22	7,783	MK Mills, Kingston H.G.	Trinity College Dublin	Immunology	Rank 189
23	8,254	MS Martin, Seamus J.	Trinity College Dublin	Biochemistry & Molecular Biology	Rank 146
24	9,217	WK Wolfe, Kenneth H.	University College Dublin	Developmental Biology	Rank 349
25	9,446	CI Coyne, I.	Trinity College Dublin	Nursing	Rank 12
26	9,749	RY Roos, Yrjö H.	University College Cork	Food Science	Rank 47
27	9,994	KB Kamber, Balz S.	Trinity College Dublin	Geochemistry & Geophysics	Rank 186
28	10,092	SL Smith, Linda	University of East Anglia	Experimental Psychology	Rank 173
29	10,333	AJ Allwood, Julian M.	University of Cambridge	Environmental Sciences	Rank 101
30	10,553	LB Leonard, Brian	National University of Ireland Galway	Psychiatry	Rank 242
31	10,619	LJ Luong, John H.T.	University College Cork	Analytical Chemistry	Rank 51
32	10,748	RI Robertson, Ian H.	Trinity College Dublin	Experimental Psychology	Rank 184
33	10,818	HD Higgins, Desmond G.	University College Dublin, School of Medicine	Bioinformatics	Rank 37
34	10,825	MF Milano, Federico	University College Dublin	Energy	Rank 201
35	11,828	PM Pagell, Mark	University College Dublin	Business & Management	Rank 301
36	12,004	KW Kolch, Walter	University College Dublin	Biochemistry & Molecular Biology	Rank 236
37	12,141	OP O'Toole, Paul W.	APC Microbiome Ireland	Microbiology	Rank 243
38	12,221	HN Hanley, Nick	University of Glasgow	Agricultural Economics & Policy	Rank 18
39	13,028	CK Cashman, Kevin D.	University College Cork	Nutrition & Dietetics	Rank 85
40	13,364	LM Lynch, Marina A.	Trinity College Dublin	Neurology & Neurosurgery	Rank 816
41	13,385	OE O'Brien, Eoin	University College Dublin	Cardiovascular System & Hematology	Rank 407
42	14,320	DK Dawson, Kenneth A.	University College Dublin	Nanoscience & Nanotechnology	Rank 394
43	14,771	CB Caulfield, Brian	University College Dublin	Biomedical Engineering	Rank 73
44	15,258	CC Cunningham, Colm	Trinity College Dublin	Neurology & Neurosurgery	Rank 919
45	15,523	HO Hardiman, Orla	Trinity College Dublin	Neurology & Neurosurgery	Rank 934
46	16,276	OM O'Donnell, Martin	National University of Ireland Galway	General & Internal Medicine	Rank 190
47	16,544	LP Lonergan, Pat	University College Dublin	Obstetrics & Reproductive Medicine	Rank 67
48	16,717	ZC Zhang, Chaosheng	National University of Ireland Galway	Environmental Sciences	Rank 169
49	16,922	MW McNicholas, Walter T.	St Vincent's University Hospital	Respiratory System	Rank 101
50	17,271	FR FitzGerald, Richard J.	University of Limerick	Food Science	Rank 86
51	17,402	SA Soroudi, Alireza	University College Dublin	Energy	Rank 339
52	17,533	TC Taylor, Cormac T.	University College Dublin	Biochemistry & Molecular Biology	Rank 340
53	18,269	TD Tobin, Desmond J.	University College Dublin	Dermatology & Venereal Diseases	Rank 53
54	18,918	NM Nolan, Michael	Tyndall National Institute at National University of Ireland, Cork	Chemical Physics	Rank 368
55	19,230	NV Nicolosi, V.	Trinity College Dublin	Nanoscience & Nanotechnology	Rank 531
56	19,577	FP Fox, Patrick F.	University College Cork	Dairy & Animal Science	Rank 26
57	19,647	BC Brunsdon, Chris	Maynooth University	Geological & Geomatics Engineering	Rank 155
58	19,764	KK Kumar, K. Vasanth	University of Limerick	Strategic, Defence & Security Studies	Rank 41
59	19,888	SM Senge, Mathias O.	Trinity College Dublin	Organic Chemistry	Rank 330
60	20,418	OD O'Regan, Donal	National University of Ireland Galway	General Mathematics	Rank 72
61	20,479	WG Watson, Graeme W.	Trinity College Dublin	Chemical Physics	Rank 404
62	20,731	SC Stanton, C.	Moorepark Food Research Centre	Microbiology	Rank 436
63	20,773	ME Morris, Edwin R.	University College Cork	Food Science	Rank 102
64	20,898	GT Gunnlaugsson, Thorfinnur	Trinity College Dublin	Organic Chemistry	Rank 353
65	20,993	WG Walsh, Gary	University of Limerick	Biotechnology	Rank 61
66	21,599	RR Ross, R. Paul	APC Microbiome Ireland	Microbiology	Rank 455
67	21,791	WN Weinstein, Netta	Cardiff University	Social Psychology	Rank 331
68	22,800	BL Brennan, Lorraine	University College Dublin	Nutrition & Dietetics	Rank 158
69	22,907	SF Sirois, Fuschia	University of Sheffield	Social Psychology	Rank 344
70	23,094	GI Graham, Ian M.	Trinity College Dublin	Cardiovascular System & Hematology	Rank 689
71	23,183	CG Clarke, Gerard	APC Microbiome Ireland	Neurology & Neurosurgery	Rank 1,356
72	23,932	DR Donnelly, Ryan F.	Queen's University Belfast	Pharmacology & Pharmacy	Rank 112
73	23,993	KB Kholodenko, Boris N.	University College Dublin	Biochemistry & Molecular Biology	Rank 472
74	24,451	MB McCleary, Barry V.	Megazyme Ltd.	Food Science	Rank 123
75	24,720	CD Collings, David G.	Dublin City University	Business & Management	Rank 578
76	25,388	CR Conroy, Ronán M.	Royal College of Surgeons in Ireland (RCSI)	General & Internal Medicine	Rank 289
77	25,538	CT Cotter, Thomas G.	University College Cork	Biochemistry & Molecular Biology	Rank 507
78	25,574	WP Wadler, Philip	University of Edinburgh	Software Engineering	Rank 32
79	25,647	CM Caffrey, Martin	Trinity College Dublin	Biophysics	Rank 41
80	25,739	GI Greer, Ian A.	Queen's University Belfast	Obstetrics & Reproductive Medicine	Rank 123
81	26,024	HD Henry, D.	University College Cork	General Mathematics	Rank 102
82	26,416	WG Walker, Gavin	University of Limerick	Chemical Engineering	Rank 159
83	26,645	AE Arendt, Elke K.	University College Cork	Food Science	Rank 142
84	26,917	KJ Kerry, Joe P.	University College Cork	Food Science	Rank 144
85	27,208	LB Lucey, Brian	Trinity Business School	Finance	Rank 97
86	27,885	FB Fitzgerald, Brian	University of Limerick	Software Engineering	Rank 40
87	28,089	BD Berry, D. P.	Moorepark Animal & Grassland Research Centre	Dairy & Animal Science	Rank 49
88	28,246	MF McDermott, F.	University College Dublin	Geochemistry & Geophysics	Rank 560
89	28,560	MP McSweeney, Paul L.H.	University College Cork	Dairy & Animal Science	Rank 51
90	28,790	BA Bowie, Andrew	Trinity College Dublin	Immunology	Rank 664
91	29,074	CS Connon, Stephen J.	Trinity College Dublin	Organic Chemistry	Rank 468
92	29,353	FP Fallon, Padraic G.	Trinity College Dublin	Immunology	Rank 678
93	29,751	SJ Simmie, John M.	National University of Ireland Galway	Energy	Rank 620
94	30,707	LM Lyons, Michael E.G.	Trinity College Dublin	Energy	Rank 636
95	31,624	OL O’Driscoll, Lorraine	Trinity College Dublin	Oncology & Carcinogenesis	Rank 1,121
96	32,628	WR Whelan, Robert	Trinity College Dublin	Neurology & Neurosurgery	Rank 1,879
97	32,967	BS Bhattacharjee, Sourav	University College Dublin	Toxicology	Rank 129
98	33,015	CA Carr, Alan	University College Dublin	Family Studies	Rank 14
99	33,858	KR Kenny, Rose Anne	Trinity College Dublin	Geriatrics	Rank 74
100	34,002	HD Henshall, D. C.	Royal College of Surgeons in Ireland (RCSI)	Neurology & Neurosurgery	Rank 1,946
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You are seeing the first 100. 486 more are on the 2020 single-year list.

Ranks 101 to 586The whole list, not only the top 100.

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Countries with a similar count

Single-year list2020

Russia751 scientistsin 2020

Greece666 scientistsin 2020

South Africa589 scientistsin 2020

Saudi Arabia557 scientistsin 2020

Portugal552 scientistsin 2020

Egypt397 scientistsin 2020

Explore other countries

Single-year list2020

United Kingdom13,805 scientistsin 2020

Sweden2,132 scientistsin 2020

Denmark1,515 scientistsin 2020

Norway922 scientistsin 2020

Finland845 scientistsin 2020

Estonia58 scientistsin 2020

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Frequently asked questions

How many scientists from Ireland are in the 2020 Stanford Top 2% list?

586 scientists affiliated with Ireland are on the 2020 single-year list, and 547 are on the career-long list.

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

On the 2020 single-year list, Trinity College Dublin has the most listed scientists from Ireland, with 108. It is followed by University College Dublin with 107.

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.