ATCA may refer to:
- Atça, a town in Turkey
- Advanced Telecommunications Computing Architecture, a specification for communications equipment
- Aid to the civil authority, military aid to the civil power
- Alien Tort Claims Act, a U.S. statue on jurisdiction
- All Tripura Chess Association, an Indian organisation
- American Theatre Critics Association
- Association of Turkish Cypriots Abroad
- Australia Telescope Compact Array, a radio telescope in New South Wales
This disambiguation page lists articles associated with the title ATCA.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: