Riverside Municipal Auditorium and Soldiers' Memorial Building, also known as the Riverside Auditorium and Events Center is an entertainment venue in Riverside, California, United States. It is owned by the City of Riverside, but is privately managed and available to rent for meetings, conventions and social functions. Opened on November 12, 1928, it also serves as a memorial to the 87 servicemembers from Riverside County who died during World War I. This reinforced concrete Mission Revival style building was added to the National Register of Historic Places in 1978.