| ONE31 | |
| Logo Alt: | ONE HD 31 logo, featuring rainbow border, "1" . |
| Launch Date: | Satellite system: Terrestrial digital: Satellite and digital: |
| Picture Format: | 1080i HDTV |
| Owner: | GMM Grammy (ONE31 Co., Ltd.) |
| Country: | Thailand |
| Language: | Thai |
| Area: | Southeast Asia |
| Headquarters: | GMM Grammy Place, Asok Montri Rd., Watthana, Bangkok, Thailand |
| Sister Channels: | GMM25 |
| Terr Serv 1: | Digital terrestrial television |
| Terr Chan 1: | Channel 31 (HD) (TV5 MUX2) |
| Terr Serv 2: | Cignal TV (Philippines) |
| Terr Chan 2: | Channel 171 (planned) |
ONE31 (th|สถานีโทรทัศน์ช่องวัน 31) and branded as ONE HD 31, is a Thai digital terrestrial television channel owned by GMM Grammy under The One Enterprise. The network offers a variety of content such as drama, variety programs, competition, news and entertainment programs.[1] [2]
ONE31 first aired on December 1, 2011 with the name 1-Sky One (วัน-สกาย วัน) with content and television programs produced by companies under GMM Grammy. On April 1, 2012, it changed its name into GMM Z Hitz (จีเอ็มเอ็มแซต ฮิตส์).
On November 1, 2012, the channel changed its name to GMM One. Its current name, ONE31 was adopted on December 2, 2015.[3]
