| Announcement in the Public Interest | API |
| Broadcasting (Miscellaneous Provisions) Ordinance (Cap. 391) | B(MP)O |
| Broadcasting Ordinance (Cap. 562) | BO |
| Chief Executive in Council | CE in C |
| China Unicom (Hong Kong) Operations Limited | China Unicom |
| Class Licence for Offer of Telecommunications Services | CLOTS |
| Commerce and Economic Development Bureau | CEDB |
| Commercial Electronic Message | CEM |
| Communications Association of Hong Kong | CAHK |
| Communications Authority | The Authority |
| Communications Authority Ordinance (Cap. 616) | CAO |
| Competition Commission | Commission |
| Competition Ordinance (Cap. 619) | CO |
| Customer Complaint Settlement Scheme | CCSS |
| Customs and Excise Department | C&ED |
| Digital Terrestrial Television | DTT |
| Director-General of Communications | DG Com |
| Domestic Free Television Programme | Free TV |
| Domestic Pay Television Programme | Pay TV |
| Do-Not-Call Registers | DNC Registers |
| Fantastic Television Limited | Fantastic TV |
| Fifth Generation (Mobile Services/Subscriptions) | 5G (Mobile Services/Subscriptions) |
| Fixed Carrier Licence | FCL |
| Fourth Generation (Mobile Services/Subscriptions) | 4G (Mobile Services/Subscriptions) |
| Gigabits per second | Gbps |
| GLOBECAST HONG KONG LIMITED | Globecast |
| High Definition Television | HDTV |
| HK Television Entertainment Company Limited | HKTVE |
| Hong Kong Cable Television Limited | HKCTV |
| Hong Kong Commercial Broadcasting Company Limited | CRHK |
| Independent Mediation Service Centre under CAHK | CCSS Centre |
| Internet of Things | IoT |
| Megabits per second | Mbps |
| Memorandum of Understanding | MoU |
| Metro Broadcast Corporation Limited | Metro |
| Mobile Carrier Licence | MCL |
| Mobile Network Operator | MNO |
| Mobile Virtual Network Operator | MVNO |
| Non-domestic Television Programme | Non-domestic TV |
| Office of the Communications Authority | OFCA |
| Other Licensable Television Programme | Other Licensable TV |
| PCCW Limited | PCCW |
| PCCW Media Limited | PCCW Media |
| Public Radiocommunications Service | PRS |
| Radio Television Hong Kong | RTHK |
| Satellite Earth Stations for Telemetry, Tracking and Control of Licensed Satellites in Orbit | TT&C stations |
| Second Generation (Mobile Services/Subscriptions) | 2G (Mobile Services/Subscriptions) |
| Secretary for Commerce and Economic Development | SCED |
| Services-based Operator | SBO |
| SmarTone Mobile Communications Limited | SmarTone |
| Spectrum Utilisation Fee | SUF |
| Telecommunications Ordinance (Cap. 106) | TO |
| Television Broadcasts Limited | TVB |
| Third Generation (Mobile Services/Subscriptions) | 3G (Mobile Services/Subscriptions) |
| Trade Descriptions Ordinance (Cap. 362) | TDO |
| Unified Carrier Licence | UCL |
| Universal Service Obligation | USO |
| Universal Service Provider | USP |
| Unsolicited Electronic Messages Ordinance (Cap. 593) | UEMO |
| Wireless Internet of Things | WIoT |