ATL may refer to:
Atlanta is the capital of and the most populous city in the U.S. state of Georgia, with an estimated 2015 population of 463,878. Atlanta is the cultural and economic center of the Atlanta metropolitan area, home to 5,710,795 people and the ninth largest metropolitan area in the United States.
Club Atlético de Madrid, SAD (Spanish pronunciation: [ˈkluβ aðˈletiko ðe maˈðɾið]) commonly known as Atlético Madrid, or simply as Atlético, is a Spanish professional football club based in Madrid, that plays in La Liga.
The Atlantic Ocean is the second largest of the world's oceans with a total area of about 106,460,000 square kilometres (41,100,000 sq mi).
Atlas Shrugged is a 1957 novel by Ayn Rand. Rand's fourth and last novel, it was also her longest, and the one she considered to be her magnum opus in the realm of fiction writing.
The Atlantic slave trade or transatlantic slave trade took place across the Atlantic Ocean from the 15th through the 19th centuries.
Atlantis (Ancient Greek: Ἀτλαντὶς νῆσος, "island of Atlas") is a fictional island mentioned within an allegory on the hubris of nations in Plato's works Timaeus and Critias, where it represents the antagonist naval power that besieges "Ancient Athens", the pseudo-historic embodiment of Plato's ideal state (see The Republic).
Atlantis: The Lost Empire is a 2001 American animated action-adventure film created by Walt Disney Feature Animation—the first science fiction film in Disney's animated features canon and the 41st overall.
Atlantic City is a resort city in Atlantic County, New Jersey, United States, known for its casinos, boardwalk and beach.