| Competition: | Thai League 3 Southern Region |
| Season: | 2020–21 |
| Continentalcup1: | |
| Continentalcup1 Qualifiers: | Songkhla Krabi |
| Matches: | 99 |
| Total Goals: | 278 |
| Biggest Home Win: | 12 goals difference (22 November 2020) |
| Biggest Away Win: | 4 goals difference (1 November 2020) (14 November 2020) (18 November 2020) |
| Highest Scoring: | 14 goals (22 November 2020) |
| Longest Wins: | 6 matches Nara United Songkhla |
| Longest Unbeaten: | 9 matches Trang |
| Longest Winless: | 9 matches Patong City |
| Longest Losses: | 7 matches Surat Thani |
| Prevseason: | 2019 (T3), 2019 (T4) |
| Nextseason: | 2021–22 |
The 2020–21 Thai League 3 Southern region is a region in the regional stage of the 2020–21 Thai League 3. Due to the COVID-19 pandemic, the season must be postponed to start in late 2020 and end in early 2021. In addition, the Thai League 4 had combined with the Thai League 3 and compete as Thai League 3 since this season[1] and there is no relegation in this season.[2] A total of 12 teams located in Southern of Thailand will compete in the league of the Southern region.[3]
In late December 2020, COVID-19 had spread again in Thailand, the FA Thailand must abruptly end the regional stage of the Thai League 3.[4]
| Position | Province | Number | Teams | |
|---|---|---|---|---|
| align=center | 1 | 2 | Surat Thani and Surat Thani City | |
| align=center rowspan="10" | 2 | 1 | Krabi | |
| 1 | Nakhon Si United | |||
| 1 | Nara United | |||
| 1 | Pattani | |||
| 1 | Phatthalung | |||
| 1 | Patong City | |||
| 1 | Satun United | |||
| 1 | Songkhla | |||
| 1 | Trang | |||
| 1 | Jalor City |
| Team | Location | Stadium | Coordinates | |
|---|---|---|---|---|
| Jalor City | Jaru Stadium | |||
| Krabi | Krabi Provincial Stadium | |||
| Nakhon Si United | Nakhon Si Thammarat PAO. Stadium | |||
| Nara United | Narathiwat PAO. Stadium | |||
| Patong City | Surakul Stadium | |||
| Pattani | Pattani Provincial Stadium | |||
| Phatthalung | Phatthalung Provincial Stadium | |||
| Satun United | Satun PAO. Stadium | |||
| Songkhla | Tinsulanon Stadium | |||
| Surat Thani | Surat Thani Provincial Stadium | |||
| Surat Thani City | Ban Song Municipality Stadium | |||
| Trang | Trang Municipality Stadium |
A T3 team could register four foreign players by at least one player from AFC member countries. A team can use four foreign players on the field in each game, including at least one player from the AFC member countries (3+1).
Note :
: players who released during winter transfer window;
: players who registered during winter transfer window;
↔: players who have dual nationality by half-caste or naturalization.
→: players who left club after registered during first or second leg.
| Other foreign players. | ||
| AFC quota players. | ||
| No foreign player registered. |
| Club | Leg | Player 1 | Player 2 | Player 3 |
|---|---|---|---|---|
| Jalor City | 1st | |||
| 2nd | ||||
| Krabi | 1st | |||
| 2nd | ||||
| Nakhon Si United | 1st | |||
| 2nd | ||||
| Nara United | 1st | |||
| 2nd | ||||
| Patong City | 1st | |||
| 2nd | ||||
| Pattani | 1st | |||
| 2nd | ||||
| Phatthalung | 1st | |||
| 2nd | ||||
| Satun United | 1st | |||
| 2nd | ||||
| Songkhla | 1st | |||
| 2nd | ||||
| Surat Thani | 1st | |||
| 2nd | ||||
| Surat Thani City | 1st | |||
| 2nd | ||||
| Trang | 1st | |||
| 2nd |
As of 3 January 2021.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | George Kelbel | Krabi | 15 |
| 2 |  Ayu Lateh | Jalor City | 10 |
| Yodwong Misen | Patong City | ||
| 4 | Pornthep Heemla | Satun United | 8 |
| Abdussalam Saman | Songkhla | ||
| 6 | Issarapong Lilakorn | Nakhon Si United | 7 |
| Phuchakhen Chandaeng | Trang | ||
| 8 | Chakris Ti-aiadyo | Pattani | 6 |
| Ibrohem Ardum | Satun United |
| Player | For | Against | Result | Date | |
|---|---|---|---|---|---|
| Ilham Ibrohing | 6–2 (H) | ||||
| 4–1 (H) | |||||
 Vitor Marcelo Alves Alcântara | 13–1 (H) | ||||
| George Kelbel4 | 13–1 (H) | ||||
| Ayu Lateh | 3–3 (A) | ||||
| Yodwong Misen | 4–1 (H) |
As of 3 January 2021.
| Rank | Player | Club | Clean sheets |
|---|---|---|---|
| 1 | Ninuruddin Nideha | Pattani | 11 |
| 2 | Jarudet Ramudth | Nara United | 9 |
| 3 | Nattapong Thongpum | Trang (7), Nakhon Si United (1) | 8 |
| 4 | Wuttichai Panbut | Krabi | 4 |
| Safaree Nunsen | Satun United | ||
| Nipon Ninchan | Songkhla | ||
| 7 | Firhan Masae | Jalor City | 3 |
| Peradach Bunkame | Nakhon Si United |