Chamblee ( SHAM-blee) is a city in northern DeKalb County, Georgia, United States, northeast of Atlanta. The population was 30,164 as of the 2020 census.

The area that would later become Chamblee was originally dairy farms. During the late nineteenth century, an intersection of two railroads was constructed in Chamblee; one carried passengers from Atlanta to Charlotte, North Carolina, while the other ferried workers and goods back and forth from a factory in Roswell to Atlanta. A settlement known as Roswell Junction emerged at the intersection, and the United States Postal Service decided to establish a post office there. However, feeling the name of the settlement was too similar to nearby Roswell, they randomly selected Chamblee from a list of petitioners for the new post office name. Chamblee was incorporated in 1907.

During World War I and World War II, Chamblee served as the site of U.S. military operations. During World War I, the U.S. operated Camp Gordon, home to 40,000 servicemen. This influx of new people created a building boom in the town. Camp Gordon was closed after the war and then re-opened as Navy Flight Training Center at the advent of World War II.

Immediately after World War II, Chamblee experienced growth in blue-collar industry and residents due to its proximity to the newly opened General Motors plant in neighboring Doraville. Manufacturing plants also located along the newly constructed Peachtree Industrial Boulevard. By the 1980s, much of the city’s industrial base had downsized or eroded; in its place sprung multi-ethnic businesses that catered to the immigrants and refugees moving to Chamblee and Doraville en masse due to the cities’ affordable housing. By the time of the 1996 Summer Olympics, Chamblee had emerged as a multi-cultural city inhabited by a large immigrant community.

During the first decade of the 2000s, the city grew as it refined its image, constructing a new city hall in 2002. In 2010, Chamblee annexed an area directly to the northwest that includes Huntley Hills and a resident population of approximately 5,000.^{[citation needed]} It also renamed Peachtree Industrial Boulevard to Peachtree Boulevard, and took steps to revitalize its downtown.In 2012 the city had an annexation proposal that was voted down by a small margin. In November 2013 the city had another annexation proposal that was passed by voters.Circa 2014 the city and Brookhaven had a dispute over which city will annex the Century Center development. The courts gave Century Center to Chamblee.