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, a.k.a. 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, a.k.a. 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
See also Delaware River Port Authority (DRPA)