JCA is an abbreviation for:

  • Japan Chess Association, the umbrella organization for chess players in Japan
  • Java Cryptography Architecture, a standard Java application programming interface ( API) for cryptography
  • Java EE Connector Architecture, a software architecture and programming interface (API ) for integration of heterogeneous applications in the Java EE platform.
  • Jewish Colonization Association, an association founded in 1891, for the establishment of Jewish colonies in America
  • Disambiguation
  • Abbreviation