Marysville Opera House, Event venue in Marysville, Washington, US

Marysville Opera House is a poured-concrete performance hall and meetinghouse built in 1911 at 1225 3rd Street in Marysville, Washington. It seats approximately 200 people and was the second known structure in Snohomish County to use poured concrete rather than timber or masonry. Local contractor A.E. Heider built it after the Oddfellows' wooden hall burned in 1910.

Built in 1911 as a concrete structure, this building replaced an earlier wooden Oddfellows hall that burned down in 1910. The construction marked an important shift in building methods for the region.

The building is named for the traveling shows and social functions it was designed to host alongside city gatherings. The Oddfellows' Marysville lodge, which built the 1898 predecessor, disbanded in 1966. The city has leased or owned the hall since 1998 and rents it for private events; it hosted 138 events in 2017.

The hall seats about 200 people and reopened in March 2001 after renovation, so it is booked for private events rather than open daily. The city bought the building in January 2018 and continues to take bookings; check with the city for event times before visiting.

The Oddfellows' Marysville lodge disbanded in 1966, after which the building passed through uses including a roller skating rink, shooting range, furniture store and disco nightclub. The city began leasing it from the Williams family in 1998 and reopened it in March 2001.