University College Dublin is one of Europe's leading research-intensive universities; an environment where undergraduate education, masters and PhD training, research, innovation and community engagement form a dynamic spectrum of activity.
With over 38,000 students from 152 countries, including over 5,000 students based on overseas campuses, UCD is not only Ireland's largest university but also its most globally engaged. Our 343,000 alumni across 184 nations lead in literature, arts, business, science and sport.
The University is ranked 100 in the world, according to the QS World University Rankings
UCD is one of Europe's leading research-intensive universities, with an environment where masters and PhD training, research, innovation and community engagement form a dynamic spectrum of activity.
No.1 nationally and ranked among the top 20 universities in Europe for Horizon Europe funding, across seven research institutes and a wide range of interdisciplinary centres, UCD drives innovation by bringing together STEM, the arts, humanities and social sciences.
The University's main Dublin campus occupies an extensive parkland estate of 133 hectares. It offers world-leading facilities, including the UCD O'Brien Centre for Science, UCD Sutherland School of Law, UCD Lochlan Quinn School of Business, and the UCD Student Centre.
As Ireland's largest university, with its great strength and diversity of disciplines, UCD embraces its role to contribute to the flourishing of Ireland, Europe and the wider world.
Updated - September 2026
Trinity College Dublin is recognised internationally as Ireland's premier university and is ranked joint 75th in the world (QS World University Rankings, 2024). In the Times Higher Education World University Rankings, Trinity is ranked 134th globally.
RCSI University of Medicine and Health Sciences, ranked in the top ten universities in the world for its contribution to UN SDG 3, Good Health and Well-being in the THE University Impact Ratings 2026, is exclusively focused on education and research to drive improvements in human health worldwide.
RCSI is an international not-for-profit university, headquartered in Dublin. It is among the top 300 universities worldwide in the World University Rankings (2024). RCSI has been awarded Athena Swan Bronze accreditation for positive gender practice in higher education.