29th World Science Fiction Convention
| Noreascon I, the 29th World Science Fiction Convention | |
|---|---|
| Genre | Science fiction | 
| Dates | 2–6 September 1971 | 
| Venue | Sheraton-Boston Hotel | 
| Location(s) | Boston, Massachusetts | 
| Country | United States | 
| Attendance | ~1,600 | 
| Filing status | non-profit | 
The 29th World Science Fiction Convention (Worldcon), also known as Noreascon I, was held on 2–6 September 1971 at the Sheraton-Boston Hotel in Boston, Massachusetts, United States.
The chairman was Tony Lewis.