Chattanooga is a city in the U.S. state of Tennessee.

Chattanooga may also refer to:

• Chattanooga, Ohio, an unincorporated community
• Chattanooga, Oklahoma, a town
• Chattanooga Creek, a stream in Georgia and Tennessee
• Chattanooga Valley, Georgia

• Battle of Chattanooga (disambiguation), three different engagements during the American Civil War in 1862 and 1863
• USS Chattanooga, four United States Navy ships

• Chattanooga Lookouts, a minor league baseball team currently affiliated with the Cincinnati Reds
• Chattanooga Mocs, the sports teams at the University of Tennessee at Chattanooga
• Chattanooga Black Lookouts, a former Negro league baseball team

• Chattanooga (band), Swedish pop trio
• Chattanooga Choo Choo, is a 1941 song written by Mack Gordon and composed by Harry Warren
• Chattanooga, a 1905 play by Anthony E. Wills

• Chattooga (disambiguation)
• Pedro "Chatanuga" Weber