The Distinguished Service Cross (DSC) is a military decoration awarded to personnel of the Australian Defence Force.

The DSC was introduced in 1991 and is the highest distinguished service decoration in the Australian Honours System.

Recipients of the Distinguished Service Cross are entitled to use the post-nominal letters "DSC".

The obverse bears a Federation Star surmounted on a disc of flames.

"[3] Since its inception, eight bars have been awarded; On 3 July 2024, a senate inquiry was launched to investigate the award criteria for the Distinguished Service Cross including the 2011 change from “in action” to “in warlike operations”.