ACE

For the playing card, see Ace. For other meanings of the word ace, see Ace (disambiguation).

ACE is a three-letter abbreviation which may refer to:

* The ACE Group of Companies
**http://www.acelimited.com
**http://ace-ina.com
*Accelerated Christian Education, a Bible-based educational curriculum for preschool through high school students.
*Accumulated cyclone energy, a measure used to express the activity of Atlantic hurricane seasons.
*ACE (file format), a data compression and archiving format.
*ACE (editor), a multi-platform collaborative editor.
*Acehnese language (ISO 639 code)
*Adaptive Communication Environment, an open-source cross-platform framework of object oriented classes to help the development of communication software.
*Advanced Compatibility Engineering, a Honda Motor Company auto body design marketing name
*Advanced Composition Explorer, a NASA satellite launched in 1997.
*Advanced Computing Environment, a defunct computer initiative to define a "new PC" based on MIPS CPUs instead of Intel x86
*Altamont Commuter Express, a commuter train service in the San Francisco Bay Area connecting Stockton with San Jose.
*American Cinema Editors, is an honorary society of film editors.
*American Coaster Enthusiasts, an organization dedicated to the enjoyment and preservation of roller coasters.
*Angiotensin-converting enzyme.
*Another Century's Episode, a 2005 video game for the PlayStation 2.
*Armored Combat Earthmover (M9), a highly mobile armored tracked vehicle that provides combat engineer support to front-line forces.
* Arrecife, Spain, (IATA airport code)
*ASCII Compatible Encoding, in the context of internationalized domain name.
*Association for Consciousness Exploration, an American organization that sponsors the annual Starwood Festival.
*Australian Centre for Egyptology, an organization established to coordinate Australian excavation efforts in Egypt with the Egyptian Supreme Council of Antiquities, and to promote Egyptology within the Australian cultural landscape.
*Automatic Computing Engine, a 1952 British computer.Ace- When a fighter pilot gets 5 kills