The Irish Universities Information Services Colloquium is an annual event which brings together senior staff from Libraries, ICT Systems and Services, Learning Technology and Audio Visual Services working in Higher Education in Ireland. It provides a forum to learn about developments in the marketplace, about the changing external environment and about changes and developments in the member institutions and elsewhere in Higher Education.
The conference is usually held in mid to late March each year, with attendance having grown to nearly 200 delegates. It has regularly been addressed by influential speakers from Ireland, Britain, Europe and the USA. IUISC aims to bring together staff from a broad range of seniority and experience, unlike other major conferences of its type which are aimed mainly at senior staff.

IUISC was founded by Queen's University of Belfast, University College Dublin, and Trinity College Dublin in 1993. The first conference held in Newcastle in 1993 was an instant success and IUISC became an annual event that has been held in different parts of Ireland ever since.
Its aim then, as now, was to bring together staff working in the broad areas of Information Services, with a view to learning about each other's problems and sharing experiences with one another. It has always been an all-Ireland body, originally based around the nine universities in Ireland and more recently inviting the participation of the Institutes of Technology in the Republic and their northern equivalents.

Organisationally, the IUISC consists of a steering group consisting of the Directors of Computing Services and the Librarians of seven universities and the Directors of Information Services at the remaining two. The steering group usually meets twice a year to discuss issues of general concern. The other main activity is planning the annual conference.

This conference has become the major event for third level information services staff in Ireland. The IUISC conference and the concept of the IUISC as a whole has proved successful down the years. It is widely acknowledged that improved communication between the institutions has been beneficial for all concerned. A number of service initiatives have been undertaken that would not have been possible if the co-operative spirit engendered by the IUISC had not been available. The different educational systems and regimes in Northern Ireland and in the Republic of Ireland have resulted in a richer and more diverse approach to problem solving throughout higher education in Ireland.