The Florida Greyhound Lines, a highway-coach carrier, was a Greyhound regional operating company, based in Jacksonville, Florida, USA, from 1946 until 1957, when it was merged into the Southeastern Greyhound Lines, a neighboring operating company.

The Atlantic Greyhound Lines, a highway-coach carrier, was a Greyhound regional operating company, based in Charleston, West Virginia, USA, from 1931 until 1960, when it became merged with the Southeastern Greyhound Lines, a neighboring operating company, thus forming the Southern Division of The Greyhound Corporation, which division became called also the Southern Greyhound Lines (GL).