| 2018 Bangkok Challenger | |
|---|---|
| Date | 1–7 January |
| Edition | 10th |
| Surface | Hard |
| Location | Bangkok, Thailand |
| Champions | |
| Singles | |
 Marcel Granollers | |
| Doubles | |
| Gerard Granollers / Marcel Granollers | |
The 2018 Bangkok Challenger was a professional tennis tournament played on hard courts. It was the tenth edition of the tournament and was part of the 2018 ATP Challenger Tour. It took place in Bangkok, Thailand between 1 and 7 January 2018.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 GER | Yannick Maden | 147 | 1 |
 JPN | Go Soeda | 150 | 2 |
| JPN | Tatsuma Ito | 153 | 3 |
 SRB | Nikola Milojević | 158 | 4 |
 EST | Jürgen Zopp | 163 | 5 |
| ESP | Marcel Granollers | 177 | 6 |
 CHN | Zhang Ze | 192 | 7 |
 POR | Gonçalo Oliveira | 194 | 8 |
The following players received wildcards into the singles main draw:
Pruchya Isaro Patcharapol Kawin Vorachon Rakpuangchon Wishaya Trongcharoenchaikul The following players received entry from the qualifying draw:
Marcel Granollers def. Mats Moraing 4–6, 6–3, 7–5. Gerard Granollers / Marcel Granollers def. 
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