Collette Mary Ann Dinnigan AO (born 24 September 1965) is an Australian based fashion designer. Born in South Africa, Dinnigan moved to New Zealand, then Australia, where she obtained work with the Australian Broadcasting Corporation. She opened her own range in 1990, with the launch of a dry-clean only lingerie collection, and was the first Australian to launch a ready-to-wear collection, in Paris in 1995.