Renton is a city in King County, Washington, and an inner-ring suburb of Seattle. Situated 11 miles (18 km) southeast of downtown Seattle, Renton straddles the southeast shore of Lake Washington, at the mouth of the Cedar River. As of 2019, the population of Renton is estimated at 101,751 up from 90,927 at the 2010 census. The city is currently the sixth-largest municipality in greater Seattle and the eighth-largest in Washington state.

After a long history as an important salmon fishing area for Native Americans, Renton was first settled by people of European descent in the 1860s. Its early economy was based on coal mining, clay production, and timber export. Today, Renton is best known as the final assembly point for the Boeing 737 family of commercial airplanes, but it is also home to a growing number of well known manufacturing, technology, and healthcare organizations, including Boeing Commercial Airplanes Division, Paccar, Kaiser Permanente, IKEA, Providence Health & Services, UW Medicine, and Wizards of the Coast.