| Acronym | Definition |
|---|
| ONT➣Ontario (old acronym - ON is now frequently used) |
| ONT➣Optical Network Terminal |
| ONT➣Optimizing Converged Cisco Networks (cisco CCNP exam) |
| ONT➣On2 Technologies |
| ONT➣Optimizing Networks |
| ONT➣Optical Network Tester |
| ONT➣Optical Network Termination |
| ONT➣Ontario Northland Railway (government of Ontario; reporting car marks) |
| ONT➣Ontario, CA, USA - Ontario International (Airport Code) |
| ONT➣Our New Thread (Coats & Clark trademark on sewing thread) |
| ONT➣Orchid Society of Northern Transvaal (South Africa) |
| ONT➣Office of Naval Technology |
| ONT➣Out of National Territory |
| ONT➣Operational Noise Temperature |