The Winston Memorial Art Gallery was an art gallery located in the Summer Islands on planet Deneva. It was a popular cultural site, visited by many Denevans over the years, including Vice-President Garson Tiernan and Starfleet Lieutenant Jasminder Choudhury. These two reminisced about their visits to the gallery in the wake of the destruction of Deneva by the Borg in 2381. (TNG novel: Losing the Peace)

The gallery is perhaps a memorial to Carter Winston, one-time executive of the Resources Corporation of Deneva.