31st World Science Fiction Convention
| Torcon II, the 31st World Science Fiction Convention | |
|---|---|
| Genre | Science fiction | 
| Dates | 31 August–3 September 1973 | 
| Venue | Royal York Hotel | 
| Location(s) | Toronto, Ontario | 
| Country | Canada | 
| Attendance | ~2,900 | 
| Filing status | non-profit | 
The 31st World Science Fiction Convention (Worldcon), also known as Torcon II, was held on 31 August–3 September 1973 at the Royal York Hotel in Toronto, Ontario, Canada.
The chairman was John Millard.