Decatur is an underground Train station on the Blue Line of the Metropolitan Atlanta Rapid Transit Authority (MARTA) rail system in the heart of Decatur, Georgia.

This station was opened on June 30, 1979. In 2005, a major renovation of the Church Street entrance to the station was begun that was completed in 2006. The redesign was intended to allow the station to fit in better with the stores and restaurants in the Decatur square. It has 2 tracks and side platforms that serve each track. It is one of the only stations on the Blue Line (besides those located in downtown Atlanta) that is completely underground and takes on a city subway feel.

Decatur Mainly Serves The City of Decatur, and South Dekalb. It provides access to Downtown Decatur-Historic Shopping and Dining District, Atlanta's Dekalb Conventional Visitor's Bureau, Decatur Main Library, Dekalb County Court House, Decatur City Hall, Art Institute of Atlanta-Decatur, Devry University, Holiday Inn Plaza Decatur and the Emory-Cliff Shuttle. Bus service is provided at this station to: South Dekalb Mall, North Dekalb Mall, Edgewood Retail District,Agnes Scott College, Georgia Perimeter College-Decatur, Dekalb Medical Center, North Dekalb Health Center, Decatur Main Post Office, and the Veterans Administration Hospital.

It has two Bicycle spaces & is Accessible.