DARPA (disambiguation)

DARPA, the Defense Advanced Research Projects Agency, is a research agency of the US Government.

DARPA may also refer to:
 * DARPA Quantum Network, the first quantum key distribution network
 * DARPANET, aka ARPANET, the first operational packet switching network of a set that came to compose the global Internet
 * DARPA Agent Markup Language, focused on the creation of machine-readable representations for the Web
 * DARPA Falcon Project
 * DARPA Grand Challenge, a prize competition for driverless vehicles
 * DARPA Grand Challenge (2007), third driverless car competition
 * DARPA Network Challenge, a prize competition for exploring the roles the Internet and social networking play in the real-time communications
 * DARPA Silent Talk, aka Brain–computer interface, a direct communication pathway between the brain and an external device
 * Darpa, Iran, a village in Kerman Province, Iran
 * Darpa (butterfly), a genus of skipper butterfly