71st World Science Fiction Convention
| LoneStarCon 3, the 71st World Science Fiction Convention | |
|---|---|
| Logo by Brad Foster | |
| Status | Active | 
| Genre | Science fiction | 
| Dates | 29 August–2 September 2013 | 
| Venue | Henry B. Gonzalez Convention Center / Marriott Rivercenter | 
| Location(s) | San Antonio, Texas | 
| Country | United States | 
| Attendance | 4,311 | 
| Organized by | Alamo Literary Arts Maintenance Organization, Inc. | 
| Filing status | 501(c)(3) non-profit | 
| Website | lonestarcon3.org | 
The 71st World Science Fiction Convention (Worldcon), also known as LoneStarCon 3, was held on 29 August–2 September 2013 at the Henry B. Gonzalez Convention Center and Marriott Rivercenter in San Antonio, Texas, United States.
The convention committee was chaired by Randall Shepherd. The convention was organized by Alamo Literary Arts Maintenance Organization, Inc. (ALAMO) which had previously organized LoneStarCon 2, the 55th World Science Fiction Convention, held in San Antonio in 1997.