11th World Science Fiction Convention
| Philcon II, the 11th World Science Fiction Convention | |
|---|---|
| The Bellevue Stratford Hotel | |
| Genre | Science fiction | 
| Dates | 5–7 September 1953 | 
| Venue | Bellevue-Stratford Hotel | 
| Location(s) | Philadelphia, Pennsylvania | 
| Country | United States | 
| Attendance | ~750 | 
| Filing status | non-profit | 
The 11th World Science Fiction Convention (Worldcon), also known as Philcon II, was held on 5–7 September 1953 at the Bellevue-Stratford Hotel in Philadelphia, Pennsylvania, United States. It was the first Worldcon to present the Hugo Awards.
The supporting organization was the Philadelphia Science Fiction Society. The chairman was Milton A. Rothman, replacing the late James A. Williams.