| Chicon IV, the 40th World Science Fiction Convention | |
|---|---|
| Genre | Science fiction |
| Dates | 2–6 September 1982 |
| Venue | Hyatt Regency Chicago |
| Location(s) | Chicago, Illinois |
| Country | United States |
| Attendance | 4,275 |
| Filing status | non-profit |
The 40th World Science Fiction Convention (Worldcon), also known as Chicon IV, was held on 2–6 September 1982 at the Hyatt Regency Chicago in Chicago, Illinois, United States.
The chairmen were Ross Pavlac and Larry Propp; Larry Smith and Bob Hillis were vice-chairmen.