| Clubname: | Royal Thai Army ทหารบก เอฟซี |
| Fullname: | Royal Thai Army Football Club สโมสรฟุตบอลทหารบก |
| Nickname: | Thai Army |
| Founded: | (as Army Welfare Department) (as Royal Thai Army) |
| Ground: | Thai Army Sports Stadium Bangkok, Thailand |
| Capacity: | 20,000 |
| Owner: | Royal Thai Army |
| Chairman: | Lt.Gen. Bunnawat Makomon |
| Manager: | Col. Somsakul Vijitraparb |
| Coach: | Lt. Adul Chumsaeng |
| League: | Thai League 3 |
| Season: | 2023–24 |
| Position: | Thai League 3, 9th of 14 in the Bangkok Metropolitan region |
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Royal Thai Army Football Club (Thai: สโมสรฟุตบอลทหารบก) is a Thailand football club under the stewardship of Royal Thai Army based in Bangkok. The team plays their home matches at Thai Army Sports Stadium. The club is currently playing in the Thai League 3 Bangkok metropolitan region.
Prior to 2015 the club was called "Army Welfare Department F.C.". After it was promoted from winner Khǒr Royal Cup to Regional League Division 2, the club changed its name to Royal Thai Army F.C..[1]
In 2022, Royal Thai Army competed in the Thai League 3 for the 2022–23 season. It is their 8th season in the professional league. The club started the season with a 0–1 home defeat to Royal Thai Air Force[2] and they ended the season with a 1–3 away defeat to Royal Thai Air Force.[3] The club has finished 9th place in the league of the Bangkok metropolitan region.
| Season | League | FA Cup | League Cup | T3 Cup | Top goalscorer | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | P | W | D | L | F | A | Pts | Pos | Name | Goals | |||||
| 2015 | Bangkok | 26 | 11 | 6 | 9 | 31 | 25 | 39 | 6th | Opted out | R1 | ||||
| 2016 | Bangkok | 20 | 9 | 6 | 5 | 30 | 28 | 33 | 4th | Opted out | R1 | ||||
| 2017 | T3 Lower | 28 | 13 | 6 | 9 | 46 | 39 | 45 | 4th | R1 | Opted out |  Kraisorn Sriyan | 14 | ||
| 2018 | T3 Lower | 26 | 10 | 5 | 11 | 30 | 31 | 35 | 7th | R2 | Opted out | Nattapong Kumnaet Noppadon Kasaen | 6 | ||
| 2019 | T3 Lower | 26 | 4 | 7 | 15 | 29 | 45 | 19 | 13th | R1 | Opted out | Nattapong Kumnaet | 5 | ||
| 2020–21 | T3 Bangkok | 20 | 5 | 7 | 8 | 18 | 33 | 22 | 10th | Opted out | Opted out | Niphon Kamthong Sattra Phokham Atikan Koakaew | 3 | ||
| 2021–22 | T3 Bangkok | 26 | 7 | 12 | 7 | 24 | 23 | 33 | 9th | Opted out | Opted out | Krismy Seungtrakoolchai Noppadon Kasaen | 4 | ||
| 2022–23 | T3 Bangkok | 26 | 8 | 6 | 12 | 25 | 39 | 30 | 9th | Opted out | Opted out | Surat Suriyachai | 7 | ||
| 2023–24 | T3 Bangkok | 26 | 5 | 6 | 15 | 27 | 59 | 21 | 9th | Opted out | Opted out | Opted out | Rungsak Kothcharak Sukrit Kuninthanee | 4 | |
| bgcolor=gold | Champions | bgcolor=silver | Runners-up | Promoted | Relegated |