| | Multidisciplinary Technologies | 3696 |
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| | Dublin Institute of Technology | 4673 |
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| O'Brien, Tony | Construction Skills | 3897 |
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| O'Callaghan, Orla | Architecture & Urban Design | 8784024 |
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| | DIT Hothouse Technology Transfer Office | 3111 |
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| O'Connor, Anthony | Mechanical and Transport Engineering | 3809 |
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| O'Connor, David | Chemical and Pharmaceutical Sciences | 4571 |
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| O'Connor, James | Construction Management & Technology | 3886 |
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| O'Connor, Tony | Sports | 0876114055 |
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| O'Donoghue, Donnacha | Hospitality Management and Tourism | 7547 |
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| | Dublin Institute of Technology | |
| | Electrical and Electronic Engineering | 4772 |
| O'Flaherty, Micheal | Civil & Building Services Engineering | 3830 |
| | Accounting and Finance | 3027 |
| | Electrical and Electronic Engineering | 4962 |
| O'Hanlon, Tracy | Maintenance | 3607 |
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| O'Leary, Vincent | Print and Digital Media | 3772 |
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| O'Rourke, Brendan | Dublin Institute of Technology | 7097 |
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| O'Shea, Denis | Tourism & Food | 4508 |
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