Unicon was an annual science fiction convention held in Maryland and at least once in Washington, D.C. from 1975 through 1989.
Unicon was born in the early 1970s on the second floor of the Stamp Student Union building at the University of Maryland, College Park.
The University of Maryland Science Fiction Club was the organizing body.
Unicon I was held at the Interstate Inn on Route 1 in College Park.
Unicon outgrew any facilities in College Park and moved to the Silver Spring Sheraton (now a Hilton, where four Capclaves were held) for a successful run into the 1980s.