GMM Z
| Native name | บริษัท จีเอ็มเอ็มแซต จำกัด | 
|---|---|
| Formerly | 1-Sky | 
| Company type | Subsidiary | 
| Industry | Satellite television, Set-top box | 
| Founded | 1 April 2012 | 
| Headquarters | GMM Grammy Tower, Bangkok, Thailand | 
| Area served | Thailand | 
| Products | Set-top Box Internet Box Smart Plugs CCTV Camera | 
| Brands | GMM Z | 
| Owner | GMM Grammy | 
| Website | www | 
GMM Z is a Thai set-top box distributor and former satellite television operator owned by GMM Grammy and Advanced Info Service.
Launched on 1 November 2011 as 1-Sky, It was operating as a KU band and C band set-top box distributor and Pay TV operator. It changed its name to GMM Z after receiving a notification from British Pay TV operator, BSkyB for the trademark conflict.
GMM Z is a subsidiary of GMM Grammy, a media-giant in Thailand. It was also has GMM B Company Limited, a subsidiary who operated Z PAY TV, a pay TV platform for GMM Z set-top boxes before sold it to CTH.