2025–26 Thai League 2
| Season | 2025–26 |
|---|---|
| Dates | 15 August 2025 – 23 May 2026 |
| Promoted | Rasisalai United |
| Matches | 267 |
| Goals | 711 (2.66 per match) |
| Top goalscorer | Arthit Boodjinda (17 Goals) |
| Biggest home win | 6 goals total Trat 6–0 Nakhon Si United (14 September 2025) |
| Biggest away win | 6 goals total Phrae United 0–6 Mahasarakham (1 February 2026) |
| Highest scoring | 9 goals total Khonkaen United 4–5 Nakhon Si United (28 September 2025) |
| Longest winning run | 7 matches Police Tero |
| Longest unbeaten run | 18 matches Rasisalai United |
| Longest winless run | 10 matches Trat |
| Longest losing run | 5 matches Bangkok Nakhon Pathom United Trat |
| Highest attendance | 12,000 Pattani 1–0 Songkhla (10 January 2026) |
| Lowest attendance | 237 Rasisalai United 0–3 Chainat Hornbill (25 January 2026) |
| Total attendance | 409,998 |
| Average attendance | 1,536 |
← 2024–25 2026–27 →
All statistics correct as of 15 March 2026. | |
The 2025–26 Thai League 2 is the 28th season of the Thai League 2, the second-tier professional league for Thailand's association football clubs, since its establishment in 1997. This league also known as BYD Seal 5 League II due to the sponsorship deal with BYD Auto. A total of 18 teams will compete in the league. The season began on 15 August 2025 and is scheduled to conclude on 23 May 2026.
For this season two teams in the final table (champion and runner up) directly promoted to Thai League 1 next season while teams ranked 3rd – 6th qualified in play off for last spot in top tier next season.
The 1st transfer window is from 1 July to 28 August 2025 while the 2nd transfer window is from 15 December 2025 to 16 January 2026.