42nd World Science Fiction Convention
| L.A.con II, the 42nd World Science Fiction Convention | |
|---|---|
| Genre | Science fiction | 
| Dates | 30 August–3 September 1984 | 
| Venue | Anaheim Hilton and the Anaheim Convention Center | 
| Location(s) | Anaheim, California | 
| Country | United States | 
| Attendance | 8,365 | 
| Filing status | non-profit | 
The 42nd World Science Fiction Convention (Worldcon), also known as L.A.con II, was held on 30 August–3 September 1984 at the Anaheim Hilton and the Anaheim Convention Center in Anaheim, California, United States.
The chairmen were Craig Miller and Milt Stevens.