2018 Bangkok Challenger – Doubles
| Doubles | |
|---|---|
| 2018 Bangkok Challenger | |
| Champions |  Gerard Granollers  Marcel Granollers | 
| Runners-up |  Zdeněk Kolář .svg.png) Gonçalo Oliveira | 
| Score | 6–3, 7–6(8–6) | 
Grégoire Barrère and Jonathan Eysseric were the defending champions and chose not to defend their title.
Gerard and Marcel Granollers won the title after defeating Zdeněk Kolář and Gonçalo Oliveira 6–3, 7–6(8–6) in the final.
Seeds
 Sanchai Ratiwatana / Sanchai Ratiwatana / Sonchat Ratiwatana (semifinals) Sonchat Ratiwatana (semifinals)
 James Cerretani / James Cerretani / Joe Salisbury (first round) Joe Salisbury (first round)
 Toshihide Matsui / Toshihide Matsui / Yi Chu-huan (first round) Yi Chu-huan (first round)
 Peng Hsien-yin / Peng Hsien-yin / Zhang Ze (quarterfinals) Zhang Ze (quarterfinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 |  Sa Ratiwatana  So Ratiwatana | 77 | 6 | ||||||||||||||||||||||||
| Alt |  I Sabanov  M Sabanov | 62 | 3 | 1 |  Sa Ratiwatana  So Ratiwatana | 6 | 3 | [10] | |||||||||||||||||||
|  M Elgin  T Khabibulin | 6 | 6 |  M Elgin  T Khabibulin | 4 | 6 | [4] | |||||||||||||||||||||
| WC |  P Isaro  W Trongcharoenchaikul | 1 | 2 | 1 |  Sa Ratiwatana  So Ratiwatana | 3 | 4 | ||||||||||||||||||||
| 4 |  H-y Peng  Ze Zhang | 6 | 6 |  G Granollers  M Granollers | 6 | 6 | |||||||||||||||||||||
| WC |  Congsup Congcar  K Samrej | 3 | 2 | 4 |  H-y Peng  Ze Zhang | 3 | 64 | ||||||||||||||||||||
| WC |  Phassawit Burapharitta  Chaleechan Tanasugarn | 3 | 1 |  G Granollers  M Granollers | 6 | 77 | |||||||||||||||||||||
|  G Granollers  M Granollers | 6 | 6 |  G Granollers  M Granollers | 6 | 78 | ||||||||||||||||||||||
| PR |  F Cipolla  A Nedovyesov | 67 | 4 |  Z Kolář .svg.png) G Oliveira | 3 | 66 | |||||||||||||||||||||
|  M Gong  D Wu | 79 | 6 |  M Gong  D Wu | 1 | 5 | ||||||||||||||||||||||
|  Z Kolář .svg.png) G Oliveira | 7 | 79 |  Z Kolář .svg.png) G Oliveira | 6 | 7 | ||||||||||||||||||||||
| 3 |  T Matsui  C-h Yi | 5 | 67 |  Z Kolář .svg.png) G Oliveira | 6 | 3 | [10] | ||||||||||||||||||||
|  N Milojević  M Safwat | 6 | 6 |  C-p Hsieh  T-h Yang | 2 | 6 | [8] | |||||||||||||||||||||
|  F Nielsen  D O'Hare | 1 | 4 |  N Milojević  M Safwat | 64 | 0 | ||||||||||||||||||||||
|  C-p Hsieh  T-h Yang | 63 | 6 | [10] |  C-p Hsieh  T-h Yang | 77 | 6 | |||||||||||||||||||||
| 2 |  J Cerretani  J Salisbury | 77 | 4 | [7] | |||||||||||||||||||||||