| ACY | Atlantic City International USA, New Jersey [Internationaler Airport Code] |
| AIY | Atlantic City Bader Field USA, New Jersey [Internationaler Airport Code] |
| AIO | Atlantic USA, Iowa [Internationaler Airport Code] |
| NAI | New Atlantic Initiative vgl. Washington, DC, http://www.aei.org |
| BBC | Bay City USA, Texas [Internationaler Airport Code] |
| HH-EFU 104 | Atlantic-Frost GmbH Hamburg, Hamburg |
| NAC | North Atlantic Council Brüssel, http://www.nato.int/docu/handbook/2001/hb070101.htm |
| NAO | North Atlantic Oscillation |
| ARCO | Atlantic Richfield Company |
| SAA | South Atlantic Anomaly |
| AT | Atlantic Time [engl.] |
| TEAM | The European- Atlantic Movement London, http://www.european-atlantic.org.uk |
| CCY | Charles City USA, Iowa [Internationaler Airport-Code] |
| CDC | Cedar City USA, Utah [Internationaler Airport-Code] |
| CSN | Carson City USA, Nevada [Internationaler Airport-Code] |
| BNI | Benin City Nigeria [Internationaler Airport Code] |
| CC | City Council |
| BMC | Brigham City USA, Utah [Internationaler Airport Code] |
| CCS | Cargo City Süd Frachtteil des Frankfurter Flughafens |
| BLD | Boulder City USA, Nevada [Internationaler Airport Code] |
| MGC | Michigan City USA, Indiana [Internationaler Airport-Code] |
| VII | Vinh City Vietnam [Internationaler Airport-Code] |
| NYC | New York City Metropole an der Ostküste der USA |
| ALX | Alexander City USA, Alabama [Internationaler Airport Code] |
| TVC | Traverse City USA, Michigan [Internationaler Airport-Code] |
| SVC | Silver City USA, New Mexiko [Internationaler Airport-Code] |
| TABD | Trans-Atlantic Business Dialogue Brüssel/ Washington, DC, http://www.tabd.com |
| TAT | Trans-Atlantic Telephone Cable vgl. http://www.iscpc.org/cabledb/atlan_page.htm |
| ASA | Astronomical Society of the Atlantic [engl.] |
| ACL | Atlantic Continental Line [engl.] Rotterdam, http://www.continentalline.org |
| ACC | Atlantic Crossing Cable [engl.] LWL-Verbindung nach Amerika |
| ADT | Atlantic Daylight Time [engl.] Atlantische Sommerzeit |
| AST | Atlantic Standard Time [engl.] Amerikanische Zeitzone |
| LCY | London City [airport] |
| KCS | Kansas City Standard |
| ICT | Inter City Tilting |
| ICF | International City Federation |
| BHD | Belfast City Airport Grossbritanien [Internationaler Airport Code] |
| CUNY | City University of New York |
| VCM | Vienna City Marathon Wien, http://www.vienna-marathon.com/german/index.html |
| CAT | City Air Terminal [engl.] Stadtnahe Flugabfertigung |
| BARTS | Bell Atlantic Regional Timesharing [engl.] Firmenbezeichnung |
| TAFTA | Trans-Atlantic Free Trade Area Transatlantische Freihandelszone |
| NATO | North Atlantic Treaty Organization, Nordatlantikpakt Brüssel, http://www.nato.int |
| DD | Atlantic Coast Jet [IATA-Airline-Code/ USA] |
| A&P | The Great Atlantic & Pacific Tea Company [engl.] Montvale, [NJ], http://www.aptea.com |
| APSN | Atlantic Packet Satellite Network [engl.] |
| EV | Atlantic Southeast Airlines [IATA-Airline-Code/ USA] |
| DH | Atlantic Coast Airlines [IATA-Airline-Code/ USA] |
| HB-EFS 087 | "Ocean Food GmbH & Co. KG Fabrikschiff FMS ""Atlantic Peace"" " Bremerhaven, Bremen |