| Acronym | Definition |
|---|
| NTU | National Taiwan University |
| NTU | Nottingham Trent University (UK) |
| NTU | Nanyang Technological University (Singapore) |
| NTU | National Taxpayers Union |
| NTU | Nephelometric Turbidity Unit |
| NTU | Network Terminating Unit |
| NTU | National Technological University (Ft Collins, CO, USA) |
| NTU | Network Termination Unit |
| NTU | Northern Territory University (AU) |
| NTU | Number of Transfer Units |
| NTU | New Threat Upgrade |
| NTU | Not Taken Up (business; offer not accepted) |
| NTU | Network Terminal Unit |
| NTU | Naval Training Unit (US Navy) |
| NTU | Neuromimetic Telepresence Unit (comics) |
| NTU | Nuclear Time Unit (3.53 x 10-19 seconds; length of time for a ray of light, traveling in a vacuum, to span the distance equal to the diameter of a hydrogen atom) |
| NTU | Nuclear Training Unit |
| NTU | Natsionalna Telekompania Ukrainy (National Television Company of Ukraine) |