Rosslyn station is the westernmost station on the shared segment of the Blue, Orange, and Silver lines of the Washington Metro. It is located in the Rosslyn neighborhood of Arlington, Virginia, United States. Rosslyn is the first station in Virginia heading westward from the District on the Orange and Silver Lines and southward on the Blue Line. It is one of four interchange points on the Metrorail system west of the Potomac River and located in a growing business district.

The Blue Line is a rapid transit line of the Washington Metro system, consisting of 28 stations in Fairfax County, Alexandria and Arlington, Virginia; Washington, D.C.; and Prince George's County, Maryland, United States. The Blue Line runs from Franconia–Springfield to Downtown Largo. The line shares track with the Orange Line for 13 stations, the Silver Line for 18, and the Yellow Line for 7. Only 3 stations are exclusive to the Blue Line.