Xero (also known as Zero and Xiro) was a Brisbane, Australia punk rock and new wave band formed in 1978.

The initial lineup was Irena Luckus, Barbara Hart, Chris Anderson, Debbie Penny, Jude Clarkin, Peter Adams and John Hunt, Deborah Thomas, Vic Allen and Lindy Morrison, soon joined by John Willsteed. Lindy Morrison was later replaced on drums by Steven Pritchard. Other members of this group included Michael O'Connell, Robert Forster, Claire McKenna, Gary Warner, Peter Adams, Sue Welch, Colin Bloxsom and Tony Childs