Universities by Research h-index in Ireland
Universities and colleges ranked by OpenAlex's institutional h-index, which combines publication volume and citation impact. This is a research metric, not a measure of teaching quality. OpenAlex is an open scholarly index; larger and older institutions tend to have more indexed research.
1Trinity College Dublin96,832 works
926
2University College Dublin106,500 works
680
3University College Cork60,924 works
669
4Ollscoil na Gaillimhe – University of Galway51,194 works
514
5Royal College of Surgeons in Ireland26,593 works
407
6University of Limerick34,365 works
351
7Dublin City University32,732 works
342
8National University of Ireland8,804 works
335
9National University of Ireland, Maynooth22,398 works
303
10Dublin Institute of Technology7,952 works
271
11Institute of Technology Sligo1,103 works
138
12Technological University Dublin10,261 works
136
13Galway-Mayo Institute of Technology1,231 works
118
14Athlone Institute of Technology1,165 works
116
15Institute of Technology Tallaght698 works
102
16Dundalk Institute of Technology1,702 works
85
17Mary Immaculate College1,738 works
75
18National College of Ireland1,687 works
73
19Atlantic Technological University2,433 works
68
20Institute of Technology Tralee326 works
66
21Letterkenny Institute of Technology2,495 works
61
22Limerick Institute of Technology433 works
57
23South East Technological University1,645 works
55
24Royal College of Physicians of Ireland634 works
47
25Institute of Technology, Blanchardstown240 works
37
26Dublin Business School361 works
35
27Dún Laoghaire Institute of Art, Design and Technology281 works
28
28Irish Management Institute69 works
19
30Discovery Programme73 works
17
31Griffith College119 works
15
32Institute of Child Education and Psychology Europe19 works
14
33National College of Art and Design173 works
14
34Milltown Institute of Theology and Philosophy179 works
9
35All Hallows College60 works
8
36The American College48 works
8
37Transport Infrastructure Ireland67 works
8
38Free University of Ireland42 works
7
39Griffith College Cork34 works
5
40Garda Síochána College9 works
2
41Griffith College Limerick2 works
2
43Irish Archaeology Field School4 works
2
44Kerry Education and Training Board2 works
1
Highlights
Within Ireland, Trinity College Dublin ranks first in 2026 with 926, followed by University College Dublin (680) and University College Cork (669).
Across 44 entries, values run from 926 (Trinity College Dublin) to 1 (Kerry Education and Training Board), with a median of 56.
Source: OpenAlex, institutional Research h-index, 2026. Unit: h-index.
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