Lanett is a city in Chambers County, Alabama, United States. At the 2010 census the population was 6,468, down from 7,897 in 2000. Lanett, originally called Bluffton, is located in eastern Alabama, on the Chattahoochee River, southwest of Atlanta. The city's name is derived from Lafayette Lanier and Theodore Bennett, founders of the West Point Manufacturing Company.

Chambers County is a county located in the east central portion of the U.S. state of Alabama. As of the 2020 census the population was 34,772. Its county seat is LaFayette. Its largest city is Valley. Its name is in honor of Henry H. Chambers, who served as a United States Senator from Alabama.