Old Town Chinatown is the official Chinatown of the northwest section of Portland, Oregon. The Willamette River forms its eastern boundary, separating it from the Lloyd District and the Kerns and Buckman neighborhoods. It includes the Portland Skidmore/Old Town Historic District and the Portland New Chinatown/Japantown Historic District, which are listed on the National Register of Historic Places. It has been referred to as the "skid row" of Portland.

Portland is a port city in the Pacific Northwest and the most populous city in the U.S. state of Oregon. Situated in the northwestern area of the state at the confluence of the Willamette and Columbia rivers, it is the county seat of Multnomah County, Oregon's most populous county. As of 2020, Portland's population was 652,503, making it the 26th-most populous city in the United States, the sixth-most populous on the West Coast, and the second-most populous in the Pacific Northwest, after Seattle. Approximately 2.5 million people live in the Portland–Vancouver–Hillsboro, OR–WA metropolitan statistical area, making it the 25th most populous in the United States. About half of Oregon's population resides within the Portland metropolitan area.