| Aussiecon, the 33rd World Science Fiction Convention | |
|---|---|
| Genre | Science fiction |
| Dates | 14–17 August 1975 |
| Venue | Southern Cross Hotel |
| Location(s) | Melbourne |
| Country | Australia |
| Attendance | 606 |
| Filing status | non-profit |
The 33rd World Science Fiction Convention (Worldcon), also known as Aussiecon, or Aussiecon One, was held on 14–17 August 1975 at the Southern Cross Hotel in Melbourne, Australia.
The chairman was Robin Johnson.
Aussiecon was significant in the development of cohesive Australian activity around science fiction and fantasy fandom.