St Barbara Limited is an Australian-based, Australian Securities Exchange-listed (ASX) gold producer and explorer.

The company was incorporated and listed in 1969 as Endeavour Oil and initially focused on mineral exploration and production from assets located in Western Australia.

In 2005, the company acquired the Southern Cross, Leonora and South Laverton gold assets from Sons of Gwalia Limited.

St Barbara's high-grade Gwalia Gold Mine at Leonora was commissioned in October 2008.

Operations at Gold Ridge in the Solomon Islands were suspended in April 2014 due to torrential rainfall and ensuing flooding.