Arthur Armstrong Denny was an American politician and businessman. He helped establish Seattle, Washington, founded Denny Party, and was later the city's wealthiest citizen He was a 9-term member of the territorial legislature. Seattle's former Denny Hill was named after him; it was flattened in a series of regrading projects and its former site is now known as the Denny Regrade. The city's Denny Way, however, is named not after Arthur Denny, but after his younger brother David Denny.

Seattle is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2022 population of 749,256 it is the most populous city in both the state of Washington and the Pacific Northwest region of North America, and the 18th-most populous city in the United States. The Seattle metropolitan area's population is 4.02 million, making it the 15th-largest in the United States. Its growth rate of 21.1% between 2010 and 2020 made it one of the country's fastest-growing large cities.