Technological University Dublin
| Ollscoil Teicneolaíochta Bhaile Átha Cliath | |
| The Grangegorman campus of TUD | |
| Other name | TU Dublin | 
|---|---|
| Former names | Dublin Institute of Technology; Institute of Technology, Blanchardstown; Institute of Technology, Tallaght | 
| Motto | Féidearthachtaí as Cuimse (Irish) | 
| Motto in English | Go Beyond Learning, Infinite Possibilities | 
| Type | Public technological university | 
| Established | 1 January 2019 – foundation of amalgamated university 1887 – foundation of City of Dublin Technical Schools | 
| Founder | Arnold Felix Graves | 
| Academic affiliation | IUA EUA UI EUt+ | 
| President | Dr Deirdre Lillis | 
| Academic staff | 3,500 | 
| Students | 28,500 | 
| Location | Grangegorman (Hub), Blanchardstown, Tallaght, Aungier Street, Bolton Street (all located in Dublin city and county), Ireland | 
| Campus | Urban, multiple | 
| Website | tudublin | 
Technological University Dublin (Irish: Ollscoil Teicneolaíochta Bhaile Átha Cliath) or TU Dublin is Ireland's first technological university. It was established on 1 January 2019, with a history going back to 1887 through the amalgamated Dublin Institute of Technology which progressed from the first technical education institution in Ireland, the City of Dublin Technical Schools. It is the second-largest third-level institution in Ireland, with a student population of 28,500.
The university was formed by the amalgamation of three existing institutes of technology in the Dublin area – Dublin Institute of Technology, Institute of Technology, Blanchardstown, and Institute of Technology, Tallaght, taking over all functions and operations of these institutions. It is the eighth university in Ireland, and the fourth in County Dublin. The university asserts an entrepreneurial ethos and industry-focused approach, with extensive collaboration with industry for research and teaching. The flagship campus is in Grangegorman, Dublin, with two other long-term campuses, in Tallaght and Blanchardstown, and remaining legacy sites at Bolton Street and Aungier Street.
TU Dublin has approximately 2,700 full-time staff. Dr Deirdre Lillis became President of the university in January 2025.