ADS may stand for:

• Active Defense Systems
• Active Denial System
• Active Directory Service - a directory implementation by Microsoft
• Advance Direction Sign
• Advanced Design System - electronic design software from Agilent Technologies
• Advanced Distributed Simulation
• Advantage Database Server - a client/server database created by Extended Systems
• Aerial Delivery Sling
• After Dinner Speech - a speaking format used in Forensics speech competitions
• Air Data System
• Aitken's double star catalogue
• Alcohol Dependance Scale - Twenty-five item scale developed by the Addiction Research Foundation
• Alternate data stream - a feature of file systems such as Microsoft's NTFS
• Alternative Delivery System
• American Depositary Shares on the New York Stock Exchange
• Annotation Data Set
• Applet Development Server
• Applicant Data System
• Archaeology Data Service
• Area Detection System
• the NASA Astrophysics Data System
• Attention Deficit Syndrome
• Autographed Document Signed
• Automatic Dependent Surveillance
• Auxiliary Data Store
• Anti de Sitter space (more commonly denoted as AdS)
• Advertisement (short for)
• Approved Destination Status worldwide unique status "awarded" to outbound travel destinations that are opened up for Chinese leisure group-tourism as a result of bi- or multilateral agreements between the People's Republic of China and host countries. Presently, the number of ADS-territories is about 100.
• The National Rail code for Ardrossan Harbour railway station, United Kingdom. External links: station information; Location map; live departures and arrivals.

AdS may stand for Render of a vehicle-mounted prototype system The Active Denial System is a non-lethal energy weapon system under development by the U.S. military. ... Active Directory (codename Cascade) is an implementation of LDAP directory services by Microsoft for use in Windows environments. ... In computing, a directory, catalog, or folder, is an entity in a file system which contains a group of files and other directories. ... In engineering and computer science, an implementation is the practical application of a method or algorithm to fulfill a desired purpose. ... Microsoft Corporation (NASDAQ: MSFT) is the worlds largest software company, with worldwide annual sales in the tens of billions of dollars and over sixty thousand employees in more than sixty countries. ... This article is being considered for deletion in accordance with Wikipedias deletion policy. ... Agilent Technologies (NYSE: A) is the actual descendant of the instrument company founded by Bill Hewlett and Dave Packard in 1939. ... In astronomy, many stars are referred to simply by catalogue numbers. ... In computing, an alternate data stream (ADS) is additional data associated with a file system object. ... In computing, a file system is a method for storing and organizing computer files and the data they contain to make it easy to find and access them. ... Microsoft Corporation (NASDAQ: MSFT) is the worlds largest software company, with worldwide annual sales in the tens of billions of dollars and over sixty thousand employees in more than sixty countries. ... NTFS or New Technology File System is the standard file system of Windows NT and its descendants Windows 2000, Windows XP and Windows Server 2003. ... New York Stock Exchange (June 2003) The New York Stock Exchange (NYSE) is the largest stock exchange in the world, although its trading volume was exceeded by that of NASDAQ (historic comparison graph {pdf}) during the 1990s. ... The Archaeology Data Service (ADS) supports research, learning and teaching with high quality and dependable digital resources. ... NASA Logo Listen to this article · (info) This audio file was created from the revision dated 2005-09-01, and does not reflect subsequent edits to the article. ... The NASA Astrophyiscs Data System (also known as ADS, adswww, or adsabs) is an online database of all peer reviewed and some submitted astronomy articles. ... Attention-deficit hyperactivity disorder (ADHD) is one of the most commonly diagnosed mental disorders among children, and may be diagnosed in adults, where it is often referred to as Adult attention-deficit disorder (AADD) if symptoms were present in childhood (even if undiagnosed in childhood). ... In mathematics, n-dimensional anti de Sitter space is a geometry with Lorentzian signature. ... Generally speaking, advertising is the paid promotion of goods, services, companies and ideas by an identified sponsor. ... National Rail uses the BR double-arrow logo National Rail is a brand name describing the passenger rail service previously provided by British Rail, the now-defunct UK state-owned rail operator. ...

• Anti de Sitter space