2018 Sibiu Open

The 2018 Sibiu Open was a professional tennis tournament played on clay courts. It was the seventh edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Sibiu, Romania between 17 and 23 September 2018.

Singles main-draw entrants

Seeds

¹ Rankings are as of 10 September 2018.
Other entrants

The following players received wildcards into the singles main draw:

The following player received entry into the singles main draw as an alternate:

Aldin Šetkić

The following players received entry from the qualifying draw:

Nicolae Frunză
Jeremy Jahn
Fabrizio Ornago
Jelle Sels

The following player received entry as a lucky loser:

Javier Barranco Cosano
Champions

Singles

Dragoș Dima def. Jelle Sels 6–3, 6–2.
Doubles
Kevin Krawietz / Andreas Mies def. Tomasz Bednarek / David Pel 6–4, 6–2.