47th World Science Fiction Convention
| Noreascon 3, the 47th World Science Fiction Convention | |
|---|---|
| Genre | Science fiction | 
| Dates | 31 August–4 September 1989 | 
| Venue | Sheraton-Boston Hotel, Hilton Hotel, Boston Park Plaza, and the Hynes Convention Center | 
| Location(s) | Boston, Massachusetts | 
| Country | United States | 
| Attendance | 6,837 | 
| Filing status | non-profit | 
The 47th World Science Fiction Convention (Worldcon), also known as Noreascon 3 (or "...Three", or "...III"), was held on 31 August–4 September 1989 at the Sheraton-Boston Hotel, Hilton Hotel, Boston Park Plaza, and the Hynes Convention Center in Boston, Massachusetts, United States.
The chairman was Mark L. Olson.