The Sibiu Open is a tennis tournament held in Sibiu, Romania since 2012. In early 2012 it was announced that BRD – Groupe Société Générale will sponsor 4 Romanian ATP Challenger Tour tournaments with Sibiu chosen to host a brand new tournament, BRD Sibiu Challenger, as it was named prior to the 2013 change of sponsor. The event is part of the ATP Challenger Tour and is played on outdoor clay courts.

Sibiu is a middle-sized, well-preserved fortified medieval town in central Romania, situated in the historical region of Transylvania. Located some 275 km (171 mi) north-west of Bucharest, the town straddles the Cibin River, a tributary of the Olt River. Now the county seat of the Sibiu County, between 1692 and 1791 and 1849–65 Sibiu was the capital of the Principality of Transylvania. During the Modern era, the Hecht hause in Sibiu served as the seat of the Transylvanian Saxon University.