| 2017 Sibiu Open | |
|---|---|
| Date | 18–24 September |
| Edition | 6th |
| Location | Sibiu, Romania |
| Champions | |
| Singles | |
 Cedrik-Marcel Stebe | |
| Doubles | |
 Marco Cecchinato / Matteo Donati | |
The 2017 Sibiu Open was a professional tennis tournament played on clay courts. It was the sixth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Sibiu, Romania between 18 and 24 September 2017.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| GER | Cedrik-Marcel Stebe | 90 | 1 |
 SRB | Laslo Đere | 95 | 2 |
| ITA | Marco Cecchinato | 99 | 3 |
 ESP | Roberto Carballés Baena | 106 | 4 |
| GER | Maximilian Marterer | 121 | 5 |
 USA | Bjorn Fratangelo | 124 | 6 |
| ITA | Stefano Travaglia | 125 | 7 |
 JPN | Taro Daniel | 129 | 8 |
The following players received wildcards into the singles main draw:
Vlad Andrei Dancu
Michał Dembek
Nino Serdarušić Adrian Ungur The following players received entry from the qualifying draw:
Matteo Donati 
Lenny Hampel
Alexandar Lazov 
Alexandre Müller The following player received entry as a lucky loser:
Cedrik-Marcel Stebe def. Carlos Taberner 6–3, 6–3. Marco Cecchinato / Matteo Donati def. 
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