Leagues and Clubs of Thailand2020/21
Thai League (1. League)
- 1. BG Pathum United
- 2. Buriram United
- 3. Port FC Bangkok
- 4. Chiangrai United
- 5. Bangkok United
- 6. Muangthong United
- 7. Samut Prakan City
- 8. Ratchaburi Mitrphol FC
- 9. Nakhon Ratchasima FC
- 10. PT Prachuap
- 11. Police Tero Bangkok
- 12. Chonburi FC
- 13. Suphanburi FC
- 14. Sukhothai FC
- 15. Trat FC
- 16. Rayong FC
Thai League 2 (2. League)
- 1. Nongbua Pitchaya
- 2. Chiangmai United
- 3. Nakhon Pathom United
- 4. Khon Kaen United
- 5. Phrae United
- 6. Chainat Hornbill
- 7. Chiangmai FC
- 8. Ranong United
- 9. Ayutthaya United
- 10. Khon Kaen FC
- 11. Navy FC Sattahip
- 12. Lampang FC
- 13. Customs United Samut Prakan
- 14. Udon Thani FC
- 15. Kasetsart FC
- 16. Sisaket FC
- 17. Uthai Thani FC
- 18. Samut Sakhon FC
Bangkok (3. League)
East (3. League)
- 1. Pluakdaeng United
- 2. Chachoengsao FC
- 3. Bankhai United
- 4. Banbueng FC
- 5. Kabin United
- 8. Pattaya Discovery United
- 10. Sakaeo FC
- 11. Chanthaburi FC
North (3. League)
- 1. Lamphun Warrior
- 3. Phitsanulok FC
- 4. Uttaradit FC
- 5. Wat Bot City
- 7. Nan FC
- 8. Chiangrai City
- 9. Kamphaengphet FC
North-East (3. League)
- 2. Muang Loei United
- 4. Ubon Kruanapat FC
- 5. Surin City
- 7. Surin Khong Chee Mool
- 8. Chaiyaphum United
- 10. Sakon Nakhon FC
- 11. Mahasarakham SBT FC
South (3. League)
- 1. Songkhla FC
- 2. Krabi FC
- 3. Nara United
- 4. Nakhon Si United
- 5. Pattani FC
- 8. Surat Thani City
- 9. Satun United
- 11. Surat Thani FC
- 12. Phattalung FC
West (3. League)
Football Association of Thailand
