Silverton is a city in Marion County, Oregon, United States. The city is situated along the 45th parallel about 12 miles (19 km) northeast of Salem, in the eastern margins of the broad alluvial plain of the Willamette Valley. The city is named after Silver Creek, which flows through the town from Silver Falls into the Pudding River, and thence into the Willamette River. The community of Milford was founded in 1846 with a sawmill, store and several other buildings two miles upstream from the present location of Silverton. In about 1853 a second sawmill was built on Silver Creek near where the Silverton city hall now stands. In 1854 the town of Silverton was platted and registered with Marion County. Human habitation of the Silverton area extends back approximately 6,000 years before the present. In historical times, the region was dominated by the Kalapuya and Molala peoples, whose seasonal burns of the area made it plow-ready and attractive to early 19th century Euro-American settlers. Farming was Silverton's first major industry, and has been a dominant land-use activity in and around Silverton since the mid-19th century.

Marion County is one of the 36 counties in the U.S. state of Oregon. The population was 345,920 at the 2020 census, making it the 5th most populous county in Oregon. The county seat is Salem, which is also the state capital of Oregon. The county was originally named the Champooick District, after Champoeg, a meeting place on the Willamette River. On September 3, 1849, the territorial legislature renamed it in honor of Francis Marion, a Continental Army general from South Carolina who served in the American Revolutionary War.