Tennga is a small unincorporated community in Murray County, Georgia, United States, along U.S. Route 411 near the Tennessee border. The community's name is unique, being a portmanteau of the "Tenn." and "Ga." abbreviations used prior to USPS-standard state codes.
Tennga is located at Coordinates: , at an elevation of 887 feet (270 m) above sea level. The area is served by Rostex Airport, which has a single pavedrunway.
On March 28, 2000, Tennga was the site of an infamous crash between a Murray County School District school bus and a 33-car southbound CSX freight train, which resulted in the deaths of three children at a railroad crossing. The railroad roughly parallels U.S. 411, and is likewise a well-used shortcut aroundChattanooga for traffic between Atlanta and Knoxville.