| Acronym | Definition |
|---|
| OTX➣Optical Transmitter |
| OTX➣Olivetti Text File |
| OTX➣Open Type Xml |
| OTX➣Online Testing Exchange |
| OTX➣Orthodenticle |
| OTX➣Off the Xans |
| OTX➣Oakland Technology Exchange (Oakland, CA) |
| OTX➣Open Targeting Exchange (AdBrite, Inc.; San Francisco, CA) |
| OTX➣Optical Transmit (NEC) |
| OTX➣Origin Transmitter (Ciena) |
| OTX➣Odin Telecom frameworX |