| Club: | BEC Tero Sasana |
| Season: | 2013 |
| Manager: | José Alves Borges |
| Chairman: | Brian Marcar |
| Stadium: | 72-years Anniversary Stadium |
| League: | Thai Premier League |
| League Result: | 7th |
| Cup1: | Thai FA Cup |
| Cup1 Result: | Fourth round |
| Cup2: | League Cup |
| Cup2 Result: | Second Round |
| League Topscorer: | Cleiton Silva (20) |
| Prevseason: | 2012 |
| Nextseason: | 2014 |
The 2013 season was BEC Tero Sasana's 17th season in the Thai Premier League.
| No. | Nationality | Name | Position | ||
|---|---|---|---|---|---|
| Goalkeepers | |||||
| 1 |  | Pisan Dorkmaikaew | GK | ||
| 19 | | Somporn Yos | GK | ||
| 27 | | Sujin Nakayom | GK | ||
| 29 | | Worawut Kaewpook | GK | ||
| Defenders | |||||
| 2 | | Peerapat Notechaiya | LB | ||
| 3 | Bukasa Kasonga | ||||
| 4 | | Chalermsuk Kaewsuktae | CB | ||
| 8 | | Apiwat Ngaolamhin | CB | ||
| 11 | | Apichet Puttan | RB | ||
| 13 | | Narubadin Weerawatnodom | RB | ||
| 17 |  | Issac Honey | CB | ||
| 22 | | Jetsada Phulek | |||
| Midfielders | |||||
| 5 | | Amorn Thammanarm | RM | ||
| 7 | | Rangsan Viwatchaichok | CM | ||
| 10 |  | Arzu | |||
| 14 | | Wichaya Dechmitr | CM | ||
| 16 |  | Sho Shimoji | LM | ||
| 18 | | Chanathip Songkrasin | AM | ||
| 20 | | Tanaboon Kesarat | DM | ||
| 21 | | Yai Nilwong | LM | ||
| 24 | | Surachet Sathaworawanit | CM | ||
| 26 | | Samuel Drogbele | CM | ||
| 31 | | Anon San-Mhard | LM | ||
| Forwards | |||||
| 9 |  | Lucas Gaúcho | CF | ||
| 15 | | Sarif Sainui | CF | ||
| 23 | | Cleiton Silva | CF | ||
| 32 | | Dennis Buschening | |||
| Position | Player | Transferred from | |
|---|---|---|---|
| 8 | Osotspa[1] | ||
| 21 | Esan United | ||
| 25 | Boa Esporte | ||
| 22 | Samut Songkhram | ||
| 11 | Buriram United | ||
| 15 | Buriram United | ||
| 39 | Luch-Energiya | ||
| Bangkok | |||
| 31 | Bangkok | ||
| Buriram United | |||
| 9 | São José-PA | ||
| 24 | Samut Songkhram | ||
| Position | Player | Transferred to | |
|---|---|---|---|
| 5 | Suphanburi[2] | ||
| 21 | Nakhon Ratchasima | ||
| 9 | Bangkok United | ||
| Air Force | |||
 Suwon FC | |||
| 4 | Released | ||
| 16 | Kedah FA | ||
| Ratchaburi | |||
| Ratchaburi | |||
| Esan United | |||
| 6 | Bangkok United | ||
| 39 | Released | ||
| 25 | Released | ||
| Position | Player | Transferred from | |
|---|---|---|---|
| 32 | Buriram United | ||
| 4 | PTT Rayong | ||
| Position | Player | Transferred to | |
|---|---|---|---|
| Bangkok Glass | |||
| 17 | Samut Songkhram | ||
| 21 | Bangkok United | ||
| 9 | Samut Songkhram | ||
| Samut Songkhram | |||
| PTT Rayong | |||
See main article: 2013 Thai Premier League.