| League Topscorer: |  Olveira Silva Diego(29 goals) |
| Biggest Home Win: | (17 February 2018) (22 April 2018) |
| Biggest Away Win: | (11 February 2018) |
| Highest Scoring: | 9 goals (25 February 2018) |
| Matches: | 108 |
| Total Goals: | 261 |
| Highest Attendance: | 1,250 (24 March 2018) |
| Lowest Attendance: | 30 (12 May 2018) |
| Attendance: | 31,010 |
| Average Attendance: | 293 |
| Nextseason: | 2019 |
2018 Thai League 4 Western Region is the 6th season of the League competition since its establishment in 2013. It is in the 4th tier of the Thai football league system.
Promoted from the 2017 Thailand Amateur League Central Region
Promoted to the 2018 Thai League 3 Lower Region
Promoted to the 2018 Thai League 3 Upper Region
Relegated from the 2017 Thai League 2
Relegated to the 2017 Thailand Amateur League Central Region
Ratchaburi Mitr Phol B and Suphanburi B were taking a 1-year break.
| Team | Province | Stadium | |
|---|---|---|---|
| Assumption United | Bangkok | Assumption Thonburi School Stadium(Wongprachanukul Stadium) | |
| Chainat Hornbill U-23 | |||
| Chainat United | Nong Mamong Stadium | ||
| Hua Hin City | |||
| IPE Samut Sakhon United | Samut Sakhon | IPE Samut Sakhon Stadium | |
| Look Isan | Bangkok | Ramkhamhaeng University Stadium | |
| Nakhon Pathom United | |||
| Nonthaburi | Nonthaburi | Nonthaburi Sports Complex Stadium | |
| Samutsongkhram | Samut Songkhram | Samut Songkhram PAO. Stadium | |
In the third leg, the winner on head-to-head result of the first and the second 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 second leg match (This penalty kickoff don't bring to calculate points on league table, it's only the process to find the home team on third leg).
As of 25 August 2018.[2]
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | Olveira Silva Diego | Nakhon Pathom United | 29 |
| 2 |  Dennis Borketey | Look Isan (5), Samut Prakan (7) | 12 |
| 3 | Almamy Sylla | IPE Samut Sakhon United | 11 |
| 4 |  Natthapat Rak-yu | Chainat United | 10 |
| Teerayut Ngamlamai | Nakhon Pathom United | ||
| 6 | Chalermsak Ruaygrabue | Assumption United | 8 |
| Arnon Kaimook | Hua Hin City | ||
| Supanai Baipa-om | Grakcu Sai Mai United (3), Look Isan (5) | ||
| 9 | Panthakant Tiengnae | Hua Hin City | 7 |
| 10 | Woraphot Somsang | Samutsongkhram (6), BTU United (1) | 6 |
| Mirzajani Tafreshi Nima | Samutsongkhram |
| Player | For ! | Against | Result | Date |
|---|---|---|---|---|
| Olveira Silva Diego4 | Nakhon Pathom United | 5–0 | ||
| Chalermsak Ruaygrabue | Assumption United | 3–1 | ||
| Olveira Silva Diego4 | Nakhon Pathom United | 5–0 | ||
| Almamy Sylla | IPE Samut Sakhon United | 3–1 | ||
| Nakhon Pathom United | 4–0 | |||
| Team \ Match played | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 273 | 172 | 123 | 175 | 112 | 325 | 155 | 115 | 125 | 127 | 115 | 96 | 1,913 | |||||
| 145 | 170 | 102 | 78 | 360 | 130 | 250 | 141 | 105 | 1,481 | ||||||||
| 200 | 301 | 321 | 155 | 251 | 90 | 125 | 260 | 150 | 120 | 120 | 150 | 2,243 | |||||
| 610 | 200 | 200 | 135 | 200 | 200 | 150 | 250 | 150 | 50 | 200 | 500 | 2,845 | |||||
| 100 | 300 | 200 | 100 | 30 | 100 | 120 | 100 | 150 | 200 | 150 | 100 | 1,650 | |||||
| 140 | 130 | 125 | 100 | 300 | 120 | 100 | 120 | 200 | 160 | 102 | 1,597 | ||||||
| 1,231 | 842 | 1,250 | 530 | 1,058 | 852 | 832 | 836 | 874 | 632 | 710 | 534 | 816 | 732 | 853 | 812 | 13,394 | |
| 450 | 436 | 992 | 250 | 200 | 250 | 162 | 150 | 125 | 3,015 | ||||||||
| 400 | 295 | 450 | 344 | 305 | 175 | 158 | 80 | 185 | 136 | 85 | 117 | 132 | 2,862 | ||||