The Chinatown–International District (abbreviated as CID) is a neighborhood of Seattle, Washington. It is the center of the city's Asian American community. Within the district are the three neighborhoods known as Chinatown, Japantown and Little Saigon, named for the concentration of businesses owned by people of Chinese, Japanese and Vietnamese descent, respectively. The geographic area also once included Manilatown.

It was the third community for the city's Chinese and Japanese immigrants, who were driven out of other locations around modern-day Pioneer Square during the late 19th century. A new Chinatown was established shortly after the Jackson Regrade in 1907, which leveled terrain near King Street Station, alongside a Japantown in the same vicinity. The city's Japantown declined following the internment of Japanese Americans during World War II, while Vietnamese immigration after the Vietnam War led to the establishment of Little Saigon in the 1970s. The construction of Interstate 5 through the neighborhood in the 1960s and the Kingdome nearby in 1976 led to further strain on the area.

The Seattle Chinatown Historic District was added to the National Register of Historic Places in 1986. The area was named the "International District" by the city government since the mid-20th century, but the term's use is controversial among the Chinese American community. Like many other areas of Seattle, the neighborhood is multiethnic, but the majority of its residents are of Chinese ethnicity. It is one of eight historic neighborhoods recognized by the City of Seattle. CID has a mix of residences and businesses and is a tourist attraction for its ethnic Asian culture and landmarks.

The CID boundaries are defined as 4th Avenue South (on the west) to Rainier Avenue (on the east) and from Yesler Way (north) to Charles Street/Dearborn (south). The CID is bordered by the neighborhoods of Pioneer Square and SoDo to the west of 4th Ave S; Rainier Valley on the east side of Rainier; Beacon Hill and the Industrial District to the south of Charles/Dearborn; and downtown and First Hill to the north of Yesler.

Within the CID are three distinct neighborhoods: Chinatown, Japantown, and Little Saigon. The Seattle Chinatown Historic District, so designated by the U.S. National Register of Historic Places in 1986, is roughly south of Jackson and west of I-5, with Hing Hay Park at its heart. In the present day, Japantown is centered on 6th Avenue and Main Street and Little Saigon's main nexus is 12th Avenue South and South Jackson Street.

Chinese immigrants first came to the Pacific Northwest in the 1850s, and by the 1860s, some had settled in Seattle. The first in the city was Chin Chun Hock, a domestic worker who arrived in 1860 and later founded a general store and hotel. Many of the first Chinese immigrants to Washington came from Guangdong province, especially Taishan. By 1873, there was an estimated 100 Chinese residents in Seattle, out of the city's total population of 2,000. The first Chinese quarters were near Yesler's Mill on the waterfront, which included several business that opened in the late 1860s. The Chinese quarter grew to include residences and shifted uphill from the waterfront into leased buildings around Washington Street. The influx of Chinese immigrants was slowed by the Chinese Exclusion Act of 1882. Following an economic crisis a few years later, a group of white Seattle residents drove out the city's Chinese population in February 1886. However, some took shelter with Native Americans on the reservations while others came under the protection of white employers and a judge.

The Great Seattle Fire of 1889 further hindered the community. Eventually, the Chinese re-established new quarters farther inland, along Washington St. and Second Avenue South. This was the second Chinatown. Land values rose, especially with impending construction of the Smith Tower, and the people of Chinatown moved again, to the present and third location along King Street. Only the Hop Sing Tong managed to retain its building on 2nd and Washington. It sold this building about 2006 in order to purchase the former China Gate building at 516 7th Ave S in the current Chinatown.

Near the end of the 19th century, Japanese immigrants also began arriving, settling on the south side of the district on the other side of the railroad tracks. Part of present-day Dearborn Street, between 8th and 12th avenues, was known as Mikado Street, after the Japanese word for "emperor." Japanese Americans developed Nihonmachi, or Japantown, on Main Street, two blocks north of King Street. By the mid-1920s, Nihonmachi extended from 4th Avenue along Main to 7th Avenue, with clusters of businesses along Jackson, King, Weller, Lane, and Dearborn streets.