| Competition: | Thai League 3 |
| Season: | 2019 |
| Winners: | Khon Kaen United |
| Relegated: | Marines Eureka |
| Continentalcup1 Qualifiers: | Khon Kaen United |
| Continentalcup2 Qualifiers: | Phrae United |
| Matches: | 156 |
| Total Goals: | 403 |
| Biggest Home Win: | 5 goals difference (2 June 2019) |
| Biggest Away Win: | 7 goals difference (11 May 2019) |
| Highest Scoring: | 8 goals (13 July 2019) |
| Longest Wins: | 8 matches Phrae United |
| Longest Unbeaten: | 15 matches Khonkaen United |
| Longest Winless: | 13 matches Marines Eureka |
| Longest Losses: | 5 matches Marines Eureka |
| Highest Attendance: | 5,384 (8 September 2019) |
| Lowest Attendance: | 22 (10 August 2019) |
| Attendance: | 111,498 |
| Average Attendance: | 697 |
| Prevseason: | 2018 |
| Nextseason: | 2020–21 |
2019 Thai League 3 Upper Region is the 3rd season of the Thai football league. It is a part of the Thai League 3 and the feeder league for the Thai League 2. A total of 14 teams will compete in the league this season.
Three clubs were promoted from the 2018 Thai League 4
Two clubs were promoted to the 2019 Thai League 2
A club was relegated to the 2019 Thai League 4 Northeastern Region
| Team | Location | Stadium | Capacity | |
|---|---|---|---|---|
| Angthong | Angthong | Ang Thong Province Stadium | 6,000 | |
| Ayutthaya | Ayutthaya | Udhomseelwitthaya School Stadium | 1,800 | |
| Bangkok | Nonthaburi | SCG Stadium | 12,505 | |
| Chachoengsao | Chachoengsao | Chachoengsao Municipality Stadium | 6,000 | |
| Chiangrai City | Chiang Rai | Chiangrai Province Stadium | 5,000 | |
| Kamphaengphet | Kamphaengphet | Cha Kung Rao Stadium | 2,406 | |
| Khonkaen United | Khon Kaen | Khonkaen PAO. Stadium | 7,000 | |
| Lamphun Warrior | Lamphun | Mae-Guang Stadium | 3,000 | |
| Marines Eureka | Chonburi | Sattahip Navy Stadium | 6,000 | |
| Muangkan United | Kanchanaburi | Kleebbua Stadium | 5,403 | |
| Phrae United | Phrae | Thunghong Municipality Stadium | 4,500 | |
| Sakaeo | Sakaeo PAO. Stadium | 10,000 | ||
| Suphanburi | Suphanburi Sports School Stadium | 1,500 | ||
| Ubon Ratchathani | Ubon Ratchathani University Stadium | 2,000 |
| Club | Player 1 | Player 2 | Player 3 | Player 4 | Player 5 | Former |
|---|---|---|---|---|---|---|
 Cláudio | Moacir |  Osama Ibrahim |  Daiki Konomura | Zafuan Azeman | Alaan Bruno de Sousa Rodrigo Oliveira Gonçalves | |
| Ayutthaya |  Ousmanou Mohamadou |  Emmanuel Kwame |  Ali Mohammadi |  Kang Hyun |  Manolom Phomsouvanh | Kendall Jagdeosingh Noah Chivuta |
| Bangkok |  Ibrahim Dicko | Ali Hassan |  Mamadou Fofana | Badar Al Alawi | Gilmàr | Bryan See Tian Keat Selwan Al Jaberi |
| Nyamsi Jacques | Moise Gnenegbe | Hans Miertschink | ||||
| Chiangrai City | Higor Da Silva | Lenny | Lucas Moraes | Victor Jatobá | ||
| Kamphaengphet | Hossein Kazemi | Robert Koki Narita Ryusei Kojima | ||||
| Khonkaen United | Douglas Cobo | Natan Oliveira | Takumu Nishihara | |||
| Lamphun Warrior | Diabate Ibrahima | Atsushi Izawa | Kendall Jagdeosingh | Noah Chivuta | Conde Mamoudou Milan Bubalo | |
| Marines Eureka | ||||||
| Muangkan United | Vinicius | Ozor Enoch | Samuel Ngouafack | |||
| Phrae United | Elivélton | Kauê Araújo | Welington Smith | Jung Jung-yu | ||
| Sakaeo | Leonardo Silvestre | Jislin Sandjo | Nguimbus Ferdinand | Taghi Nayebi | Lucas Massaro Naohiro Yoshida | |
| Simork | Kunie Kitamoto Sadney Urikhob | |||||
| Ubon Ratchathani | Leo Carioca | David Bayiha | Hwang In-seong | Song I-leum | Karim Hassan | |
As of 8 September 2019.[2]
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | Natan Oliveira | Khonkaen United | 18 |
| 2 | Ibrahim Dicko | Bangkok | 15 |
 Ronnachai Pongputtha | Lamphun Warrior | ||
| 4 | Moacir Wilmsen | Angthong | 9 |
| Selwan Al Jaberi | Bangkok (5 Goals) Kasem Bundit University (4 Goals) | ||
| Arthit Peeraban | Phrae United | ||
| 7 | Badar Al-Alawi | Bangkok | 8 |
| Bunlue Thongkliang | Bangkok | ||
| Conrado | Khonkaen United | ||
| Charin Boodhad | Khonkaen United | ||
| Jung Jung-yu | Phrae United | ||
| Player | For ! | Against | Result | Date |
|---|---|---|---|---|
| Phitchanon Chanlung | Chiangrai City | 5–1 | ||
| Ibrahim Dicko | Bangkok | 7–0 | ||
| Natan Oliveira4 | Khonkaen United | 5–1 | ||
| Natan Oliveira | Khonkaen United | 4–1 | ||
| Moacir Wilmsen | Angthong | 6–2 | ||
| Moacir Wilmsen | Angthong | 4–3 | ||
| Date | Matches each team against Simork since 31 March 2019. |
| Team \ Match played | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 669 | 967 | 759 | 412 | 476 | 19 May | 614 | 535 | 524 | 586 | 521 | 434 | 245 | 6,742 | |
| 207 | 250 | 69 | 54 | 100 | 150 | 89 | 90 | 49 | 87 | 120 | 25 Aug | 310 | 1,575 | |
| 372 | 600 | 415 | 205 | 353 | 220 | 356 | 353 | 20 Jul | 356 | 428 | 437 | 4,095 | ||
| 950 | 624 | 641 | 1,385 | 476 | 617 | 415 | 6 Jul | 596 | 341 | 492 | 487 | 929 | 7,953 | |
| 105 | 100 | 52 | 100 | 48 | 85 | 168 | 1 Jun | 174 | 120 | 22 | 41 | 250 | 1,265 | |
| 675 | 391 | 119 | 170 | 151 | 160 | 253 | 250 | 300 | 91 | 170 | 90 | 120 | 2,940 | |
| 4,470 | 3,871 | 4,526 | 4,661 | 4,361 | 4,720 | 4,214 | 4,481 | 3,685 | 4,132 | 17 Aug | 4,228 | 5,384 | 52,733 | |
| 1,340 | 950 | 735 | 954 | 671 | 869 | 636 | 672 | 1,109 | 892 | 617 | 497 | 8 Sep | 9,942 | |
| 223 | 950 | 31 Mar | 70 | 650 | 320 | 105 | 120 | 107 | 127 | 240 | 280 | 410 | 3,602 | |
| 404 | 291 | 209 | 503 | 150 | 136 | 290 | 543 | 274 | 155 | 11 Aug | 161 | 236 | 3,352 | |
| 309 | 278 | 199 | 235 | 378 | 402 | 336 | 827 | 530 | 820 | 596 | 807 | 1,083 | 6,800 | |
| 250 | 230 | 200 | 250 | 200 | 600 | 250 | 475 | 400 | 31 Jul | 600 | 450 | 700 | 4,605 | |
| 800 | 320 | 225 | 6 Apr | 28 Apr | 12 May | 26 May | 29 Jun | 14 Jul | 27 Jul | 4 Aug | 21 Aug | 31 Aug | 1,345 | |
| 500 | 500 | 350 | 520 | 20 Apr | 375 | 219 | 450 | 390 | 240 | 440 | 280 | 285 | 4,549 | |