SwanCon is a science fiction convention held in Perth, Western Australia. It is Australia's longest-running science fiction convention, and probably the longest-running in the southern hemisphere. It was founded in 1975 by Grant Stone, and has been run annually since. It is generally run by different committees of volunteers each year, and committees bid for the right to run the convention two years in advance. In recent years it has been run as a project of the Western Australian Science Fiction Foundation (WASFF), with that years committee reporting to the WASFF board. The convention is frequently run at Easter, but has been run at other times, though typically in the first half of the year, and is generally held in a hotel. It generally attracts 250–300 attendees. It will normally have guests attending including at least one international author.