Snohomish County Courthouse, County courthouse in Everett, United States.

The Snohomish County Courthouse is a Spanish Mission-style building on Rockefeller Avenue in Everett, Washington, designed by architect August F. Heide after a 1909 fire destroyed the previous 1897 courthouse. The original 1911 structure has been expanded with two wings added in 1953, a five-story wing in 1967, and a five-story expansion wing completed in 2021.

The previous courthouse, completed in 1897, burned in 1909; architect August F. Heide designed the Spanish Mission style replacement, built by 1911. Two wings were added in 1953, and a five-story wing in 1967 on the site of the 1908 annex. Grant-funded restoration in the early 2000s returned the 1911 building to its original appearance.

The courthouse's name comes from the Snohomish people, whose name also labels the county and the river. Its 1911 Mission-style front, with a red tile roof, is the part visitors see from Rockefeller Avenue; the 1967 wing and its 2021 expansion stand behind and beside it.

The courthouse is located at 3000 Rockefeller Avenue and operates during regular business hours for public access and court proceedings. Remote appearance options are available for certain types of cases, making it more flexible for visitors who cannot attend in person.

The 1908 two-story annex north of the original building was demolished to make way for the five-story wing added in 1967; a similar building went up on the block east of the court complex in 1973. The 1967 wing was then renovated from 2018 to 2021 for $74.8 million, adding a five-story expansion wing and an extra courtroom.