Mardi McConnochie (born 1971) is an Australian author and playwright.
She is the author of three novels, Coldwater (2001), The Snow Queen (2003), Fivestar (2005), several plays and two books for children, Melissa, Queen of Evil (2006) and Dangerous Games (2007). McConnochie's novels have grappled with questions about celebrity and the possibilities open to women and women artists.
As well as novels, McConnochie has written for the stage and for television. Her television credits include Home and Away, Always Greener, McLeod's Daughters and Pacific Drive.
McConnochie lives in Sydney with her partner, the novelist, James Bradley.