Symphony station, formerly University Street station, is a light rail station that is part of the Downtown Seattle Transit Tunnel in Seattle, Washington, United States. The station is located under 3rd Avenue at University Street, near Benaroya Hall, and is served by Sound Transit's 1 Line. It is located between Westlake and Pioneer Square stations and has surface connections to buses operated by King County Metro and other providers.

The station consists of two side platforms situated under street level, with two mezzanines connecting to the surface. It was designed in the style of high-tech architecture and includes several pieces of public art added during construction and later additions. Trains serve the station twenty hours a day on most days and the headway between light rail trains is six minutes during peak periods, with less frequent service at other times.

The transit tunnel opened on September 15, 1990, and was used exclusively by buses until 2009. Along with all other stations in the transit tunnel, University Street station was closed from 2005 to 2007 for a major renovation to accommodate light rail. Link light rail service to the station began on July 18, 2009, and bus service ceased on March 23, 2019. It was renamed to Symphony station on August 30, 2024, to prevent confusion with other stations that serve the University of Washington.

Symphony station is located under 3rd Avenue between Union and Seneca streets in Downtown Seattle; the area is part of the Metropolitan Tract, an area of downtown that is owned by, and was originally home to, the University of Washington. The area surrounding the station primarily consists of high-rise office buildings and some mixed-use development, providing 102,194 jobs and housing a population of 13,813 within a 1⁄2 mile (0.8 km) of 3rd Avenue and University Street. Major buildings in the immediate vicinity of Symphony station include Benaroya Hall and 1201 Third Avenue (formerly Washington Mutual Tower) on the west side of the station and the historic Seattle Tower and Cobb Building on the east side. The Seattle Art Museum and the Harbor Steps are located two blocks west of the station at the intersection near 1st Avenue, above the Seattle Waterfront and Seattle Aquarium. The 5th Avenue Theatre, Seattle Central Library, Rainier Square shopping center, and Union Square are all located east of the station along 5th Avenue.

The Metropolitan Tract, historically the northern boundary of downtown Seattle during its early decades, was offered for development shortly after the University of Washington moved its campus to the north side of Portage Bay (modern day University District) in 1895. The university's Board of Regents voted to lease the land to private developers in 1902, beginning a construction boom in the area under the direction of the Metropolitan Building Company. In 1911, Virgil Bogue presented a comprehensive plan for the city of Seattle, including a rapid transit system centered around a "trunk" subway under 3rd Avenue, passing through Downtown and the Metropolitan Tract, towards a new civic center in modern-day Belltown. The plan was rejected by voters on March 5, 1912, and the 3rd Avenue subway was unsuccessfully proposed twice in the 1920s.

In the late 1960s, the Forward Thrust Committee put forward a ballot measure to fund a rapid transit system in the Seattle metropolitan area, including a downtown subway under 3rd Avenue with a station between Seneca and Spring streets. The ballot measure, requiring a supermajority to support bonding to augment $385 million in local funding with $765 million from the Urban Mass Transportation Administration, failed to reach the 60 percent threshold in 1968 and again during a second vote in 1970. The failure of the Forward Thrust ballot measures led to the creation of Metro Transit in 1972, operating bus service across King County.

Metro Transit began planning a bus tunnel through downtown Seattle in the 1970s, to be eventually converted to use by light rail trains. Metro approved the construction of a bus tunnel under 3rd Avenue in 1983, and chose the intersection of 3rd Avenue and University Street as the site of one of the tunnel's five stations. The station at University Street, replacing two separate stations at Union and Madison streets, would be excavated cut-and-cover and be completed by late 1989.

Excavation of the downtown bus tunnel began in early 1987, and construction reached the University Street area later that year. The twin tunnel boring machines used to excavate the tunnel reached University Street in October 1987, and continued north towards Westlake station. In December, Metro agreed to pay $2.4 million to real estate developer Marathon Company for use of a city block they owned adjacent to the station for equipment staging and storage, delaying the planned construction of office buildings on the site. During excavation and construction of the University Street tunnel station, cracks and minor settling were found in the historic Seattle Tower, located nearby. The ground around the tower was later stabilized to prevent additional settlement, and was renovated with private funding in 1990.