| Date: | 12–17 November |
| Edition: | 2nd |
| Draw: | 32S / 16D |
| Surface: | Hard |
| Location: | Bangalore, India |
| Champs: |  Prajnesh Gunneswaran |
| Champd: |  Max Purcell / Luke Saville |
| After Year: | 2020 |
The 2018 Bengaluru Open was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Bangalore, India from 12 to 17 November 2018.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Moldova, Republic of | Radu Albot | 100 | 1 | |
 Argentina | Marco Trungelliti | 121 | 2 | |
 Sweden | Elias Ymer | 130 | 3 | |
| India | Prajnesh Gunneswaran | 141 | 4 | |
| Australia | Marc Polmans | 142 | 5 | |
 France | Quentin Halys | 145 | 6 | |
 United Kingdom | Jay Clarke | 174 | 7 | |
 Canada | Filip Peliwo | 181 | 8 |
The following players received wildcards into the singles main draw:
Adil Kalyanpur Saketh Myneni Sumit Nagal Suraj PrabodhThe following players received entry from the qualifying draw:
Youssef Hossam Sasikumar Mukund
Zsombor PirosThe following player received entry as a lucky loser:
See main article: 2018 Bengaluru Open – Singles.
Prajnesh Gunneswaran def. Saketh Myneni 6–2, 6–2.See main article: 2018 Bengaluru Open – Doubles.
Max Purcell / Luke Saville def. Purav Raja / Antonio Šančić 7–6(7–3), 6–3.