Duffy, established in 1971, is a suburb in the district of Weston Creek. Duffy was named in honour of Sir Charles Gavan Duffy, KCMG, who was the 8th Premier of Victoria. The streets in the suburb of Duffy are named after Australian dams and reservoirs.
The Canberra bushfires of 2003 destroyed about 200 Duffy homes and the local petrol station. Duffy was the suburb that received the most damage in the fires. Narrabundah Hill, which borders the western edge of Duffy, is managed by ACT Forests and had contained a mature pine plantation before the fires. As of 2005, work has been under way to plant a new plantation on the hill and surrounding areas.
Educational institutions located in Duffy include the government schools of Duffy Preschool and Duffy Primary School. Located near these schools is the Duffy community oval and the local shops.