2017 Thai League 3
The 2017 Thai League 3 (known as the Euro Cake League Pro for sponsorship reasons) football season will be the first season of Thai League 3. 29 clubs will be divided into 2 groups (regions). Clubs Upper Region Promoted from 2016 Regional League Division 2 Northern Division Kamphaeng Phet Phrae United Phayao Lamphun Warrior Promoted from 2016 Regional League Division 2 North-Eastern Region Udon Thani Ubon Ratchathani Kalasin Khon Kaen Amnat Poly United Promoted from 2016 Regional League Division 2 Eastern Region Cha Choeng Sao Prachinburi United Sa Kaeo Promoted from 2016 Regional League Division 2 Central Region Ayutthaya Warrior Ayutthaya Singburi Bang Rachan Ayutthaya United Lower Region Promoted from 2016 Regional League Division 2 Bangkok & field Region Chamchuri United BU.Deffo Royal Thai Army Promoted from 2016 Regional League Division 2 Bangkok & Eastern Region Raj Pracha Customs United Banbung United Kasem Bundit University Promoted from 2016 Regional League Division 2 Western Region Samut Sakhon Krung Thonburi Ratchaphruek University Simork BTU United Promoted from 2016 Regional League Division 2 Southern Region Surat Thani Nara United Trang Ranong United Changes from last season Changed clubs Ayutthaya Warrior was reinstated to Phichit. Changed name Ratchaphruek University changed to Nakhon Si Thammarat