Catherine Bush (born 1961 in Toronto) is a Canadian novelist.
Her debut novel, 1993's Minus Time, was shortlisted for the Books in Canada First Novel Award and the City of Toronto Book Award.
Her most recent novel "Claire's Head" (2004) deals with the subject of migraines in an authentic way which can be a relief for migraine sufferers who feel that no novel has ever captured their symptoms before. It is unknown whether Catherine Bush is a migraine sufferer.