ACT may refer to:
- Australian Capital Territory, the capital territory of the Commonwealth of Australia
- ACT (test), a college placement exam in the United States
In business:
- ACT mouthwash from Chattem
- Advanced Cell Technology, a biotech corporation involved in researching and developing cloning and stem cell technologies
- Ada Core Technologies, now AdaCore, a software company that develops an Ada compiler, tools and libraries
- Applied Computer Techniques, renamed Apricot Computers in 1985, a computer services company
- Aviation Composite Technology, an aircraft manufacturer in the Philippines
- ACT (NASDAQ), Automated Confirmation of Transactions, a trade reporting and clearing system
- Advance corporation tax, a tax collected in the United Kingdom until 1999
- ACT!, contact management software
Organizations:
- ACT Alberta, a Canadian coalition to raise awareness about human trafficking
- ACT Alliance, an alliance of churches for coordinating humanitarian assistance and development work.
- ACT New Zealand, a political party in New Zealand
- Academy of Clinical Thyroidologists
- Addenbrooke's Charitable Trust
- Association for Competitive Technology, a technology lobby group
- The Association of Commercial Television in Europe, a group which represents the business interests of the commercial television sector at the EU institutions
- Association of Cinematograph Technicians, now the Association of Cinematograph Television and Allied Technicians
- Association of Corporate Treasurers
- Action for Children's Television, an organization dedicated to improvements in children's television
- Advanced Concepts Team, A research team of the European Space Agency
- Alliance of Concerned Teachers, an alliance of teachers, educators and teacher organizations in the Philippines
- America Coming Together, a United States political group
- AIDS Committee of Toronto, sponsor of Fashion Cares
- Asian College of Technology, a private university in the Philippines
- Association for Citizenship Teaching, a professional subject association for teachers of citizenship
- United Education Institute or Advanced Career Training, a private post-secondary educational facility with locations in Georgia and Florida
- Australian College of Theology
- Amazon Conservation Team, a non-profit organization that works in partnership with indigenous people to protect the Amazon rainforest
In government:
- Allied Command Transformation, a NATO strategic command
- Advanced Concepts Team, a research team of the European Space Agency
In science and technology:
- ACT-R, a symbolic cognitive architecture
- ACT (audio format), file format
- Active voice or Actor role in interlinear glossing
- Apple Certified Trainer, one of the Apple certification programs
- Astrographic Catalog/Tycho, a star catalogue; see Hipparcos Catalogue
- Atacama Cosmology Telescope, a telescope in Chile
In medicine:
- Artemisinin based combination therapy, a treatment for malaria
- Assertive community treatment, a system for treating mental illness
- Acceptance and commitment therapy, a type of cognitive-behavioral therapy
- Activated clotting time
In entertainment:
- A.C.T, a progressive rock band from Sweden
- ACT Theatre, in Seattle, Washington
- American Conservatory Theater, in San Francisco, California
In sport:
- Australia national cricket team
- American Canadian Tour, a race organisation.
In transport:
- Ford ACT, a people mover, short for Automatically Controlled Transportation or Activity Center Transit
- Ascot railway station, a railway station in the United Kingdom with the National Rail code "ACT"
- Waco Regional Airport, an airport in Waco, Texas, United States, with the IATA airport code "ACT"
- Agency for Community Transit, Madison County Transit's paratransit system
- Azienda comunale del traffico, a former transport operator in Lugano, Switzerland
Famous quotes containing the word act:
“No legislation can suppress nature; all life rushes to reproduction; our procreative faculties are matured early, while passion is strong, and judgment and self-restraint weak. We cannot alter this, but we can alter what is conventional. We can refuse to brand an act of nature as a crime, and to impute to vice what is due to ignorance.”
—Tennessee Claflin (18461923)
“I wish my countrymen to consider that whatever the human law may be, neither an individual nor a nation can ever commit the least act of injustice against the obscurest individual without having to pay the penalty for it. A government which deliberately enacts injustice, and persists in it, will at length even become the laughing-stock of the world.”
—Henry David Thoreau (18171862)
“Tis much he dares,
And to that dauntless temper of his mind,
He hath a wisdom that doth guide his valor
To act in safety.”
—William Shakespeare (15641616)