Stephen Edward Foster (30 September 1946 – 25 January 2018) was an Australian singer-songwriter and musician from Murray Bridge, South Australia.

He was attending South Australian School of Art when he began a residency at The Catacombs Coffee Lounge in Hackney.

He performed in The Mount Lofty Rangers, which was a collection of Adelaide musicians including the late Bon Scott, before he joined AC/DC.

Steve Foster was inducted into the SA Music Hall of Fame, posthumously, at his memorial Tribute Concert at the Governor Hindmarsh Hotel where fellow musicians flew in from across Australia to perform his music and honour his legacy.

Steve Foster died on 25 January 2018 in Adelaide, South Australia, four years after being diagnosed with lung cancer.