Dublin City University (abbreviated as DCU) is a university based on the Northside of Dublin, Ireland. Created as the National Institute for Higher Education, Dublin in 1975, it enrolled its first students in 1980, and was elevated to university status (along with the NIHE Limerick, now the University of Limerick) in September 1989 by statute.

In September 2016, DCU completed the process of incorporating four other Dublin-based educational institutions: the Church of Ireland College of Education, All Hallows College, Mater Dei Institute of Education and St Patrick's College.

As of 2020, the university has 17,400 students and over 80,000 alumni. In addition, the university has around 1,200 online distance education students studying through DCU Connected. There were 1,690 staff in 2019. Notable members of the academic staff include former Taoiseach, John Bruton and "thinking" Guru Edward De Bono. Bruton accepted a position as Adjunct Faculty Member in the School of Law and Government in early 2004 and De Bono accepted an adjunct Professorship in the university in mid-2005.

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