2015 Sibiu Open

The 2015 Sibiu Open was a professional tennis tournament played on clay courts. It was the fourth edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Sibiu, Romania between 21 and 27 September 2015.

Seeds

 * 1 Rankings are as of September 14, 2015.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇷🇴 Victor Vlad Cornea
 * 🇷🇴 Victor Crivoi
 * 🇵🇱 Michał Dembek
 * 🇷🇴 Dragoș Dima

The following players received entry from the qualifying draw:
 * 🇨🇦 Steven Diez
 * 🇪🇸 Marc Giner
 * 🇷🇴 Petru-Alexandru Luncanu
 * 🇮🇹 Riccardo Sinicropi

The following player received entry as a lucky loser:
 * 🇷🇴 Andrei Stefan Apostol

Singles

 * 🇷🇴 Adrian Ungur def. 🇪🇸 Pere Riba, 6–4, 3–6, 7–5

Doubles

 * 🇷🇴 Victor Crivoi / 🇷🇴 Petru-Alexandru Luncanu def. 🇷🇸 Ilija Bozoljac / 🇷🇸 Dušan Lajović, 6–4, 6–3