Smyrna is a city in Cobb County, Georgia, United States. It is located northwest of Atlanta, and is in the inner ring of the Atlanta Metropolitan Area. It is included in the Atlanta–Sandy Springs–Alpharetta MSA, which is included in the Atlanta–Athens-Clarke–Sandy Springs CSA.

Interstate 285 (I-285) is an auxiliary Interstate Highway encircling Atlanta, Georgia, for 63.98 miles (102.97 km). It connects the three major Interstate Highways to Atlanta: I-20, I-75, and I-85. Colloquially referred to as the Perimeter, it also carries unsigned State Route 407 (SR 407) and is signed as Atlanta Bypass on I-20, I-75, and I-85.