| Competition: | Thai League 4 Western Region |
| Season: | 2019 |
| Dates: | 9 February 2019 – 31 August 2019 |
| Winners: | Hua Hin City |
| Relegated: | Look E San |
| Continentalcup1: | |
| Continentalcup1 Qualifiers: | Hua Hin City Chainat United |
| Matches: | 108 |
| Total Goals: | 327 |
| League Topscorer: |  Sutin Iamsa-ard(11 goals; Hua Hin City) Suriyakarn Chimjeen(11 goals; Saraburi United) |
| Biggest Home Win: | 7 goals difference (27 April 2019) |
| Biggest Away Win: | 7 goals difference (9 June 2019) |
| Highest Scoring: | 11 goals (1 June 2019) |
| Longest Wins: | 6 matches Assumption United |
| Longest Unbeaten: | 14 matches Assumption United |
| Longest Winless: | 11 matches Saraburi United |
| Longest Losses: | 10 matches Ratchaburi Mitr Phol (B) |
| Highest Attendance: | 1,435 (2 March 2019) |
| Lowest Attendance: | 37 (31 July 2019) |
| Attendance: | 26,279 |
| Average Attendance: | 250 |
| Prevseason: | 2018 |
| Nextseason: | 2020–21 (T3) |
The 2019 Thai League 4 Western region is a region in the regional stage of the 2019 Thai League 4. A total of 9 teams located in Western, Central, and Bangkok Metropolitan Region of Thailand will compete in the league of the Western region.
| Position | Province | Number | Teams | |
|---|---|---|---|---|
| 1 | 2 | Chainat Hornbill (B) and Chainat United | ||
| align=center rowspan="7" | 2 | 1 | Assumption United | |
| 1 | Look E San | |||
| 1 | Hua Hin City | |||
| 1 | Ratchaburi Mitr Phol (B) | |||
| 1 | IPE Samut Sakhon United | |||
| 1 | Samut Songkhram | |||
| 1 | Saraburi United |
| Team | Location | Stadium | Coordinates | |
|---|---|---|---|---|
| Assumption United | Assumption College Thonburi Stadium | |||
| Chainat Hornbill (B) | Khao Plong Stadium | |||
| Chainat United | Nong Mamong Stadium | |||
| Hua Hin City | Hua Hin Municipal Stadium | |||
| IPE Samut Sakhon United | IPE Samut Sakhon Stadium | |||
| Look E San | Nonthaburi Youth Centre Stadium | |||
| Ratchaburi Mitr Phol (B) | Pak Tho Municipality Stadium | |||
| Samut Songkhram | Samut Songkhram Stadium | |||
| Saraburi United | Saraburi Stadium |
Notes:
* The reserve of T1 and T2 teams also known as team (B) could not qualify and relegated, so that the teams in lower or upper positions would be qualified or relegated.
For the Western region, a total 24 matches per team competing in 3 legs. In the 3rd leg, the winner on head-to-head result of the 1st and the 2nd leg will be home team. If head-to-head result are tie, must to find the home team from head-to-head goals different. If all of head-to-head still tie, must to find the home team from penalty kickoff on the end of each 2nd leg match (This penalty kickoff don't bring to calculate points on league table, it's only the process to find the home team in 3rd leg).
| Position | Teams | Name | Goals | ||
|---|---|---|---|---|---|
| align=center rowspan="2" | 1 | Hua Hin City | Sutin Iamsa-ard | align=center rowspan="2" | 11 |
| Saraburi United | Suriyakarn Chimjeen | ||||
| align=center rowspan="1" | 3 | Chainat United | Thanayut Jittabud | 10 | |
| align=center rowspan="3" | 4 | Assumption United |  Akira Niiho | align=center rowspan="3" | 9 |
| Jakkrit Senkaew | |||||
| Surawut Sutthisak | |||||
| align=center rowspan="2" | 7 | Chainat Hornbill (B) | Weraphat Kaewongsa | align=center rowspan="2" | 7 |
| Samut Songkhram | Sittichai Pankoo | ||||
| align=center rowspan="2" | 9 | IPE Samut Sakhon United | Kittin Duangket | align=center rowspan="2" | 5 |
| Ratchaburi Mitr Phol (B) | Yotsak Chaowana | ||||
| align=center rowspan="3" | 11 | Look E San | Noppadol Juijaiherm | align=center rowspan="3" | 3 |
| Piranun Kerdsorn | |||||
| Thanakorn Pheuansopa |
| Team \ Match played | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 170 | 185 | 132 | 105 | 170 | 253 | 182 | 425 | 160 | 150 | 150 | 180 | 120 | 324 | 85 | 154 | 2,945 | ||
| 140 | 125 | 105 | 150 | 135 | 115 | 125 | 78 | 128 | 95 | 98 | 1,294 | |||||||
| 250 | 120 | 120 | 102 | 120 | 120 | 120 | 175 | 250 | 150 | 135 | 160 | 170 | 200 | 2,192 | ||||
| 250 | 530 | 250 | 300 | 200 | 200 | 250 | 250 | 250 | 200 | 300 | 350 | 500 | 3,830 | |||||
| 150 | 150 | 300 | 200 | 176 | 200 | 200 | 300 | 300 | 400 | 2,376 | ||||||||
| 500 | 100 | 100 | 109 | 150 | 200 | 350 | 150 | 115 | 300 | 202 | 2,276 | |||||||
| 74 | 233 | 300 | 429 | 250 | 150 | 325 | 83 | 158 | 72 | 2,074 | ||||||||
| 210 | 150 | 116 | 174 | 250 | 150 | 150 | 105 | 37 | 1,342 | |||||||||
| 1,435 | 1,105 | 772 | 544 | 290 | 455 | 578 | 618 | 523 | 625 | 1,005 | 7,950 |