Agnes Kluckhenn (born 1 April 1909) is a British-born Australian centenarian who is the oldest living person in Australia.
Agnes Kluckhenn, affectinately knows as "Nessie" was born in Scotland, United Kingdom, on 1 April 1909. She emigrated to Australia two years after the end of World War II. Kluckhenn was twice married, but remained childless. She spent 20 years in Hampton, and another 28 years in Brighton. She currently lives in Brighton East, Victoria, Australia.