The 2017 Istanbul Open (also known as the TEB BNP Paribas Istanbul Open for sponsorship purposes) was a men's tennis tournament played on outdoor clay courts. It was the third edition of the Istanbul Open, and an ATP World Tour 250 event. It took place at the Koza World of Sports Arena in Istanbul, Turkey, from 1–7 May 2017.
Singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 CAN
|
Milos Raonic | 6 | 1 |
 CRO
|
Marin Čilić | 8 | 2 |
 ARG
|
Diego Schwartzman | 34 | 3 |
 ITA
|
Paolo Lorenzi | 38 | 4 |
 SRB
|
Viktor Troicki | 39 | 5 |
 AUS
|
Bernard Tomic | 41 | 6 |
| CRO
|
Borna Ćorić | 48 | 7 |
 BEL
|
Steve Darcis | 53 | 8 |
- Rankings are as of April 24, 2017.
Other entrants
The following players received wildcards into the main draw:
The following player received entry as a special exempt:
The following players received entry via the qualifying draw:
The following player received entry as a lucky loser:
Withdrawals
- Before the tournament
Radu Albot →replaced by 
Mohamed Safwat
Doubles main-draw entrants
Seeds
| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 USA
|
Nicholas Monroe |  NZL
|
Artem Sitak | 94 | 1 |
 MEX
|
Santiago González |  GBR
|
Dominic Inglot | 112 | 2 |
 ISR
|
Jonathan Erlich | USA
|
Scott Lipsky | 122 | 3 |
| ARG
|
Guillermo Durán | ARG
|
Andrés Molteni | 134 | 4 |
- Rankings are as of April 24, 2017.
Other entrants
The following pairs received wildcards into the doubles main draw:
Champions
Singles
- Marin Čilić def. Milos Raonic, 7–6(7–3), 6–3
Doubles
Roman Jebavý / Jiří Veselý def. 
Tuna Altuna / Alessandro Motti 6–0, 6–0