| Season: | 2021–22 |
| Dates: | 3 September 2021 — 28 May 2022 |
| Winners: | Lamphun Warriors |
| League Topscorer: | Thales Lima (22 goals) |
| Biggest Home Win: | 6 goals difference (5 March 2022) |
| Biggest Away Win: | 6 goals difference (17 November 2021) (26 March 2022) |
| Highest Scoring: | 12 goals difference (17 November 2021) |
| Highest Attendance: | 4,529 (24 April 2022) |
| Lowest Attendance: | 0 |
| Attendance: | 162,177 |
| Average Attendance: | 634 |
| Matches: | 306 |
| Total Goals: | 869 |
| Updated: | 30 April 2022 |
The 2021–22 Thai League 2 is the 24th season of the Thai League 2, the second-tier professional league for Thailand's association football clubs, since its establishment in 1997, also known as M-150 Championship due to the sponsorship deal with M-150. A total of 18 teams will compete in the league. The season is scheduled to begin on 14 August 2021 and is scheduled to conclude on 22 May 2022.[1]
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 4 May 2021 to 27 July 2021 while the 2nd transfer window is from 8 December 2021 to 4 January 2022.
The following teams have changed division since the 2020–21 season.
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality; Club dissolved during season would shown by grey background.
Players name in bold indicates the player was registered during the mid-season transfer window.
Lampang won 4–1 on aggregate.----Trat won 2–1 on aggregate.
5–5 on aggregate. Lampang won on away goals.
As of 30 April 2022.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 |  Thales Lima | Udon Thani (13 Goals) Lamphun Warriors (9 Goals) | 22 |
| 2 | Lampang | 20 | |
| 3 | Leandro Assumpção | Muangkan United | 17 |
| Rodrigo Maranhão | Phrae United | ||
| Paulo Conrado | Trat | ||
| 6 |  Osman Sow | Sukhothai | 16 |
| 7 | Jardel Capistrano | Rajpracha | 14 |
 Kenzo Nambu | Nakhon Pathom United (5 Goals) Rayong (9 Goals) | ||
| 9 |  Weerayut Sriwichai | Lampang | 13 |
 Choi Ho-ju | Customs Ladkrabang United (10 Goals) Rajpracha (3 Goals) | ||
| Chaowasit Sapsakunphon | Sukhothai | ||
| Player | For ! | Against | Result | Date |
|---|---|---|---|---|
| Felipe Wallace | Ayutthaya United | 5–3 (H) | ||
| Thales Lima4 | Udon Thani | 9–3 (A) | ||
| 6–1 (H) | ||||
| Thales Lima | Lamphun Warriors | 3–3 (A) | ||
| Rajpracha | 3–0 (H) | |||
| Trat | 4–2 (H) | |||
As of 30 April 2022.
| Rank | Player | Club | Cleansheets |
|---|---|---|---|
| 1 | Samuel Cunningham | Lamphun Warriors | 10 |
| Todsaporn Sri-reung | Trat | ||
| 3 | Soponwit Rakyart | Ayutthaya United | 9 |
| 4 | Suchin Yen-arrom | Lampang | 8 |
| Natchanon Jothavorn | Nakhon Pathom United | ||
| Pathomtat Sudprasert | Phrae United | ||
| 7 | Jaturong Samakorn | Chiangmai | 7 |
| Kritsana Klanklin | Kasetsart | ||
| 9 | Kiadtiphon Udom | Rajpracha (4) / Chiangmai (2) | 6 |
| Suppawat Srinothai | Rayong | ||
| Kittipun Saensuk | Sukhothai | ||
| Month | Player of the Month | Reference | |
|---|---|---|---|
| Player | Club | ||
| September | Paulo Conrado | Trat | |
| October | Osman Sow | Sukhothai | |
| November | Thales Lima | Udon Thani | |
| January | Leandro Assumpção | Muangkan United | |
| February | Maung Maung Lwin | Lamphun Warriors | |
| March | Anuwat Noicheunphan | Chainat Hornbill | |
| April | Anan Yodsangwal | Lamphun Warriors | |
| Team \ Match played | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 150 | 210 | 390 | 215 | 175 | 320 | 250 | 420 | 278 | 383 | 275 | 284 | 347 | 275 | 205 | 1,120 | 5,297 | ||
| 0 | 531 | 421 | 657 | 952 | 1,120 | 951 | 1,090 | 852 | 1,090 | 1,235 | 1,012 | 1,055 | 1,130 | 1,029 | 1,123 | 1,055 | 15,303 | ||
| 0 | 0 | 0 | 472 | 0 | 956 | 811 | 762 | 688 | 915 | 841 | 675 | 712 | 567 | 642 | 567 | 716 | 9,324 | ||
| 0 | 0 | 116 | 200 | 250 | 300 | 350 | 350 | 420 | 220 | 215 | 235 | 195 | 190 | 180 | 218 | 275 | 3,714 | ||
| 0 | 0 | 0 | 0 | 432 | 320 | 372 | 380 | 310 | 420 | 720 | 422 | 642 | 520 | 415 | 520 | 1,458 | 6,931 | ||
| 732 | 641 | 625 | 836 | 1,123 | 545 | 610 | 655 | 485 | 722 | 915 | 844 | 628 | 645 | 638 | 815 | 919 | 12,378 | ||
| 0 | 320 | 151 | 420 | 542 | 437 | 572 | 486 | 434 | 312 | 430 | 572 | 314 | 376 | 782 | 218 | 594 | 6,960 | ||
| 0 | 0 | 359 | 353 | 459 | 750 | 628 | 693 | 578 | 1,021 | 1,220 | 1,193 | 1,230 | 1,021 | 932 | 1,230 | 4,529 | 16,226 | ||
| 0 | 0 | 990 | 909 | 675 | 1,190 | 1,091 | 1,006 | 258 | 1,090 | 1,198 | 759 | 1,135 | 592 | 1,127 | 781 | 2,712 | 15,513 | ||
| 0 | 0 | 0 | 0 | 350 | 423 | 125 | 372 | 375 | 385 | 278 | 325 | 315 | 421 | 638 | 389 | 475 | 4,871 | ||
| 0 | 0 | 0 | 0 | 261 | 369 | 448 | 269 | 271 | 260 | 290 | 250 | 320 | 350 | 220 | 350 | 380 | 4,038 | ||
| 478 | 423 | 532 | 634 | 725 | 895 | 562 | 532 | 683 | 616 | 458 | 496 | 697 | 433 | 498 | 583 | 564 | 9,809 | ||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| 0 | 0 | 0 | 100 | 97 | 320 | 467 | 410 | 0 | 1,285 | 447 | 358 | 0 | 310 | 352 | 246 | 876 | 5,268 | ||
| 0 | 0 | 0 | 256 | 423 | 390 | 326 | 402 | 847 | 900 | 844 | 358 | 621 | 464 | 641 | 361 | 365 | 7,198 | ||
| 204 | 208 | 306 | 273 | 489 | 730 | 980 | 841 | 1,015 | 1,492 | 1,239 | 1,196 | 1,149 | 1,164 | 1,035 | 1,152 | 1,815 | 15,288 | ||
| 595 | 359 | 348 | 495 | 515 | 559 | 695 | 695 | 755 | 595 | 515 | 855 | 595 | 523 | 599 | 395 | 395 | 9,488 | ||
| 845 | 970 | 1,030 | 694 | 730 | 753 | 980 | 985 | 785 | 430 | 340 | 750 | 745 | 760 | 545 | 1,800 | 1,459 | 14,601 |
Abdolreza Zarei
Selwan Al-Jaberi
Frank Touko Nzola
