| Season: | 2009 |
| Competition: | Regional League Division 2 Southern Region |
| Highest Scoring: | Nakhon Si Thammarat 6-2 Pattani (8) |
| Nextseason: | 2010 |
2009 Regional League Division 2 Southern Region (Thai: ลีกภูมิภาค ภาคใต้ or ไทยลีกดิวิชัน 2 ภาคใต้) is the 3rd Level League in Thailand. The first season was played in 2009, starting in March and finishing in August.
The league winners Narathiwat entered the Regional League Championships 2009.
| Club | Province | Home Stadium[1] [2] | Capacity |
|---|---|---|---|
| Krabi | Krabi | Krabi Province Stadium | ? |
| Nakhon Si Thammarat | Nakhon Si Thammarat | Ron Phibun District Stadium | ? |
| Narathiwat | Narathiwat | Narathiwat Province Stadium | 5,561 |
| Pattani | Pattani | Pattani Municipality Stadium | ? |
| Phattalung | Phattalung | Phattalung Province Stadium | 4,021 |
| Phuket | Phuket | Surakul Stadium | 15,000 |
| Satun | Satun | Satun Province Stadium | 4,671 |
| Yala | Yala | Yala Province Stadium | ? |