2017 Thai League 3 Lower Region

2017 Thai League 3 (Euro Cake League Pro) Lower Region is the 1st season of the League, its establishment in 2017. It is a part of the Thai League 3 and the feeder league for the Thai League 2. A total of 15 teams will compete in the league this season.

Promoted Clubs
Five club was promoted from the 2016 Thai Division 2 League Western Region
 * Samut Sakhon
 * Krung Thonburi
 * Ratchaphruek University
 * Simork
 * BTU United

Three club was promoted from the 2016 Thai Division 2 League Bangkok & field Region
 * Chamchuri United
 * Bangkok University Deffo
 * Royal Thai Army

Four club was promoted from the 2016 Thai Division 2 League Bangkok & Eastern Region
 * Rajpracha
 * MOF Customs United
 * Banbueng
 * Kasem Bundit University

Four club was promoted from the 2016 Thai Division 2 League Southern Region
 * Surat Thani
 * Nara United
 * Trang
 * Ranong United

Renamed Clubs

 * Nakhon Si Thammarat Unity authorize from Ratchaphruek University

Expansion Clubs

 * BTU United Club-licensing football club didn't pass to play 2017 Thai League 3 Lower Region. This team is relegated to 2017 Thai League 4 Western Region again.

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 (3+1+1).
 * Note :
 * players who released during summer transfer window;
 * players who registered during summer transfer window.

Top scorers

 * As of 16 September 2017.

Attendances by home match played
Source: Thai League 3

Note: Unk.1 Some error of T3 official match report 25 March 2017 (Kasem Bundit University 4–2 Rajpracha).

Unk.2 Some error of T3 official match report 2 July 2017 (Simork 3–0 Krung Thonburi).

Unk.3 Some error of T3 official match report 10 September 2017 (Nara United 1–3 Samut Sakhon).