| Denvention I, the 3rd World Science Fiction Convention | |
| Venue: | Shirley-Savoy Hotel |
| Dates: | 4–6 July 1941 |
| Attendance: | 90 |
The 3rd World Science Fiction Convention (Worldcon), also known as Denvention I, was held on 4–6 July 1941 at the Shirley-Savoy Hotel in Denver, Colorado, United States.
The convention was chaired by Olon F. Wiggins.
Attendance was 90.
This was the last Worldcon before a five-year break in the annual tradition due to World War II. The next one was held in 1946.
The Shirley-Savoy Hotel. Savoy Hotel opened in 1904; Shirley Hotel opened in 1903; Hotels joined in 1919; Hotels razed in 1970.[1]