ATCA
# ATCA

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
