Adobe Pacifica is the code name for an Adobe project to develop VoiP (Voice over Internet Protocol) in combination with their Flash multimedia animation platform. Pacifica was initiated by Adobe in 2007.

Pacifica was intended to extend Adobe’s Flash player and AIR development platform on the PC and Mac to provide the highest-quality voice reproduction possible. It was to be based upon on the SIP (Session Initiation Protocol), a signaling protocol for voice and video over IP. It was intended to provide voice-based synchronous point-to-point communication on Internet browsers. Users were to need only a microphone and a Flash player to experience high-quality voice communication.

A Pacifica beta was set for release in early summer of 2008. But it never happened. By mid-2008, announcements and updates from Adobe on the status of Pacifica ceased, and at this time it appears the project has been either abandoned or redefined.