2017 Thai League 3 Upper Region
2017 Thai League 3 Upper Region was the 1st edition of the Thai football league. It is a part of the Thai League 3 and the feeder league for the Thai League 2. A total of 14 teams contested the league ti tle that season, after Prachinburi United failed in getting a licence for the league and Phichit withdrew before the season start.
Changes from last season
Team changes
Promoted clubs
Four club was promoted from the 2016 Thai Division 2 League Northern RegionFive club was promoted from the 2016 Thai Division 2 League North Eastern Region
Four club was promoted from the 2016 Thai Division 2 League Central Region
Three club was promoted from the 2016 Thai Division 2 League Central Region
Renamed clubs
- Phichit authorize from Ayutthaya Warrior because Phichit is an absolute football club quota.
Withdrawn clubs
- Phichit is taking a 1-year break. This team was automatically banned 2 years, did not get subsidy and relegated to 2019 Thai League 4 Northern Region.
Expansion clubs
- Prachinburi United Club-licensing football club did not pass to play 2017 Thai League 3 Upper Region. This team was relegated to 2017 Thai League 4 Eastern Region again.
Teams
Stadium and locations
| Team | Location | Stadium | Capacity |
| Amnat United | Amnat Charoen | Amnat Charoen Provincial Stadium | 2,500 |
| Ayutthaya | Ayutthaya | Udhomseelwitthaya School Stadium | 1,800 |
| Ayutthaya United | Ayutthaya | Senabodee Stadium ' Ayutthaya Provincial Stadium ' | 2,500 6,000 |
| Chachoengsao | Chachoengsao | Chachoengsao Municipality Stadium | 6,000 |
| Kalasin | Kalasin | Kalasin Municipality Stadium | 2,580 |
| Kamphaengphet | Kamphaengphet | Cha Kung Rao Stadium | 2,600 |
| Khonkaen | Khonkaen | Khonkaen PAO. Stadium | 8,000 |
| Lamphun Warrior | Lamphun | Mae-Guang Stadium | 3,000 |
| Phayao | Phayao | Phayao Provincial Stadium | 6,000 |
| Phrae United | Phrae | Thunghong Municipality Stadium | 4,500 |
| Sakaeo | Sakaeo | Sakaeo PAO. Stadium | 10,000 |
| Singburi Bangrajun | Singburi | Singburi Provincial Stadium | 4,000 |
| Ubon Ratchathani | Ubon Ratchathani | Ubon Ratchathani University Stadium | 2,000 |
| Udon Thani | Udon Thani | Udon Thani Rajabhat University Stadium | 4,500 |
Foreign players
The number of foreign players is restricted to five per T3 team. A team can use five foreign players on the field in each game, including at least one player from the AFC member countries and one player from nine countries member of ASEAN.League table
Standings
Season statistics
Top scorers
| Rank | Player | Club | Goals |
| 1 |  AttendancesAttendances by home match playedSource:Note: Some error of T3 official match report 19 February 2017. Some error of T3 official match report 30 April 2017. Some error of T3 official match report 2 July 2017. Some error of T3 official match report 12 August 2017. |